2. Episode 2

Butt Detective goes to the station, where the officers are looking into who's behind a string of burglaries. But the chief has another job for them.

3. Episode 3

After a Kaito the canine crook threatens to steal the Goddess Scarf from the museum, Butt Detective prepares to protect the precious booty.

4. Episode 4

The Black Shadow thieves are in town and the police ask Butt Detective for assistance in putting an end to their mischief before any theft occurs.

5. Episode 5

Butt Detective, Brown and Chief Maltese must get to the bottom of the Black Shadow Gang's burglaries. Later, they search for the leader's hideout.

6. Episode 6

After someone leaves a strange box at the Lucky Cat, the police show up to help only to find they're behind Butt Detective, who's already on the case.

7. Episode 7

A conversation at a feline cafe leads Butt Detective to reveal the backstory of how Brown became his assistant, going back to how he learned to talk.

8. Episode 8

A potato-loving lady clad in purple knocks on Butt Detective's door and asks him to get to the bottom of a mysterious message from her ancestors.

9. Episode 9

The purple potato case continues as Butt Detective, Brown and their purple companion head into the ancestors' hut. But it appears to be empty.

10. Episode 10

While hearing about a forest cafe's missing manager, Butt Detective realizes he's been tailed by a persistent koala who may be after Brown's job.

11. Episode 11

When the local barbershop owner complains of a spooky ghost scaring his customers, Butt Detective volunteers to get to the bottom of the mystery.

12. Episode 12

Butt Detective is asked to protect the Oyagi family treasure from Kaito U, a master of disguise, but he seems to remain one step behind the thief.

13. Episode 13

Master burglar Kaito U's stolen the booty from right under Butt Detective's cheeks. But our perceptive hero is not far behind the thief.

14. Episode 14

Butt Detective gets a mysterious letter from a faraway jungle, but it's missing a return address on its back. He and Brown head out for an adventure.

15. Episode 15

Butt Detective and Brown venture further into the dangerous ruins only to come face-to-face— or rather cheek-to-cheek—with a familiar figure.

16. Episode 16

Butt Detective is expecting to be interviewed by Cafe Guide magazine, but the odd interviewer who arrives doesn't quite pass the sniff test.

17. Episode 17

Just as Butt Detective is about to go to the police station to learn about a new crime-fighting tool, he receives an urgent call about a stolen item.

18. Episode 18

An international crime-fighting organization has discovered Kaito U's hiding place. Before they head in, Butt Detective is brought along as backup.

19. Episode 19

Butt Detective and Brown resolve to get to the bottom of rumors about a giant thief. They soon deduce what appears to be its present location.

20. Episode 20

While the cops continue their investigation into the giant jewel thief, Butt Detective and Brown are hot on the heels (and cheeks) of the big bandit.

21. Episode 21

Brown reports that while Butt Detective was out, someone stole his precious snack. The big-cheeked detective uses the case as a training opportunity.

22. Episode 22

Koala-chan asks Butt Detective for help dealing with ghosts seen near a park she likes. Brown insists he's not scared but doesn't seem to want to go.

23. Episode 23

Butt Detective, Brown and Koala-chan are trapped behind a locked door in the supposedly-haunted mansion but he soon deduces an alternate egress.

24. Episode 24

After getting his cheeks shaved, Butt Detective accepts a job from the police to return a stolen item to its owner. But no one knows who it is.

25. Episode 25

Butt Detective investigates a robbery at the Elvis Grizzly museum. The case darkens as the clues lead back to one of the police's own K-9 officers.

26. Episode 26

When a missing bag turns back up filled with cash, Butt Detective must reconstruct a series of unintentional exchanges before two lovebirds depart.

27. Episode 27

A wealthy banker whose daughter has been kidnapped calls on Butt Detective. The criminal is demanding his famous Rainbow Diamond, but it's missing.

28. Episode 28

Butt Detective's search for the Rainbow Diamond is almost at an end. But some wall-writings indicate that actually picking it up might not be so easy.

29. Episode 29

Kaito U's back and he's threatening to steal a porcine spa's "greatest treasure." Butt Detective and the K-9s try to deduce what it could be.

30. Episode 30

Butt Detective and Brown head to a local festival, where a troublemaker who looks just like the double-cheeked detective has been making mischief.

31. Episode 31

Butt Detective uses the cards and coin that his doppelganger left behind to locate him. Meanwhile, Brown helps his new female friend find her ribbon.

32. Episode 32

A new investigator claims to be the best and challenges Butt Detective to a public detective match. But our hero senses something amiss.

33. Episode 33

There's trouble at the KNK bank and the police ask Butt Detective to take the job. But soon Carrot Horse butts in, complicating the situation.

34. Episode 34

Butt Detective receives another request from rich banker Kamenokoji. His daughter Midori is up to something odd and he wants the sleuth to tail her.

35. Episode 35

The K-9 cops and a gang of sparrow laborers ask Butt Detective to look into what's behind a series of spooky ghost-sightings at an old clock tower.

36. Episode 36

After feline thieves nab a special cane, Butt Detective is on the case. He's joined by his double-cheeked dad, who has a history with the stolen item.

37. Episode 37

Brown and his koala pal star in a new detective movie. But behind the scenes, Butt Detective must solve a real case involving some thieving monkeys.

38. Episode 38

Butt Detective arrives at Castle Wolf to protect its booty from Kaito U. But he gets the impression there's something not quite right with his host.

39. Episode 39

Butt Detective arrives at the treasure only to see it stolen by Kaito U. But then a second Kaito U appears and each claims that the other is a phony.

40. Episode 40

Butt Detective and Brown head to a ski slope to investigate rumors of a monstrous yeti, who is behind the resort’s sudden drop in customers.

41. Episode 41

Butt Detective's deductions finally lead him to the bottom of the yeti mystery. But he still needs to catch the culprits responsible for its creation.

42. Episode 42

Butt Detective's deductions finally lead him to the bottom of the yeti mystery. But he still needs to catch the culprits responsible for its creation.

43. Episode 43

Chief Maltese butts heads with his rival, Chief Chihuahua, at a restaurant. After something goes missing, they compete to see who can solve the case.

44. Episode 44

Butt Detective uses tricky tactics to give Brown a lesson in sleuthing. Later, the local kids surprise Brown by giving him a case of his own to solve.

45. Episode 45

Butt Detective and Brown receive a mysterious visitor. Once they deduce his identity, he asks them to help stop Kaito U from stealing his treasure.

46. Episode 46

Butt Detective and the contestants face their next trial: a giant, menacing snake. Later, Kaito U finally shows himself and tries to steal the veil.

47. Episode 47

Kaito U enters the infamously inescapable Orinona Prison and its straight-arrow warden vows to reform him. But Kaito U isn't about to change his ways.

48. Episode 48

Kaito U and his crow companion escape from their prison cell, but they're not out of danger yet. Their first stop is the guards' break room.

49. Episode 49

While Butt Detective and the canine cops review a string of apple thefts, a journalist bursts in to report his camera was stolen by a spooky culprit.

50. Episode 50

After two painful cavities lead Brown and Koala-chan to meet at the dentist's office, a canine detective asks them to find his 11 missing puppies.

51. Episode 51

The canine cops reveal a new crime-fighting invention that they're very proud of. But it reminds Brown of the destruction caused by their last one.

52. Episode 52

Kaito U is going after the opera house's treasure, so Butt Detective and Brown pay a visit. One of the actors they see on stage is awfully familiar.

53. Episode 53

54. Episode 54

55. Episode 55

56. Episode 56

57. Episode 57

58. Episode 58

59. Episode 59

60. Episode 60

61. Episode 61

62. Episode 62

63. Episode 63

64. Episode 64

65. Episode 65

66. Episode 66

67. Episode 67

68. Episode 68

69. Episode 69

70. Episode 70

71. Episode 71

72. Episode 72

73. Episode 73

74. Episode 74

75. Episode 75

76. Episode 76

77. Episode 77

78. Episode 78

79. Episode 79

80. Episode 80

81. Episode 81

82. Episode 82

83. Episode 83

84. Episode 84

85. Episode 85

86. Episode 86

87. Episode 87

88. Episode 88

89. Episode 89

90. Episode 90

91. Episode 91

92. Episode 92

93. Episode 93

94. Episode 94

95. Episode 95

96. Episode 96

97. Episode 97

98. Episode 98

99. Episode 99

100. Episode 100

101. Episode 101

102. Episode 102

103. Episode 103

104. Episode 104

105. Episode 105

106. Episode 106

107. Episode 107

108. Episode 108

109. Episode 109

110. Episode 110

111. Episode 111

112. Episode 112

113. Episode 113

114. Episode 114

115. Episode 115

116. Episode 116

117. Episode 117

118. Episode 118

119. Episode 119

120. Episode 120

121. Episode 121

122. Episode 122

123. Episode 123

124. Episode 124

125. Episode 125

126. Episode 126

127. Episode 127

128. Episode 128

129. Episode 129

130. Episode 130

131. Episode 131