Shinichi Kudo (Jimmy Kudo) is considered the modern day Sherlock by the Japanese police, because he has successfully solved countless cases. However, he is caught by two members of a criminal organization, when he witnesses a black mail. They give him a drug called APTX4869 (the name is not revealed until later in the series). Instead of dying, Kudo returns to a childhood state. Now, he must solves cases while he lives with his childhood friend and her father, in order to either get his hands on the drug or get the ingredients, so he can return to normal.

• Season 1:
  1. The Big Shrink
  2. The Kidnapped Debutante
  3. Beware of Idols
  4. Fish Marks the Spot
  5. The Time Bomb Express
  6. Tragic Valentine
  7. The Case of the Mysterious Gifts
  8. The Art Museum Murder Case
  9. Festival Fiasco
  10. Deadly Game
  11. The Moonlight Sonata Murder Case (this episode is one hour long)
  12. Kidnapped: Amy
  13. Mystery Mastermind
  14. The Shooter
  15. The Two Faced Brother
  16. A Loan Repaid
  17. The Case of the Hi-jacked Department Store
  18. Wedding Day Blues
  19. Fashion Sense
  20. The Disappearing Act
  21. Lights, Camera, ...Murder
  22. Smooth Sailing part 1
  23. Smooth Sailing part 2
  24. Better off Forgotten
  25. The Counterfeit Ransome Kidnapping
  26. Jack Attacks
• Season 2:
  27. Richard's Class Reunion part 1
  28. Richard's Class Reunion part 2
  29. The Computer Murder
  30. The Missing Melody
  31. Murder at the Television Studio
  32. Murder at the Local Diner
  33. A Hunting We Will Go
  34. Mountain Villa Murder part 1
  35. Mountain Villa Murder part 2
  36. Wrong Place at the Wrong Time
  37. Prickly Past
  38. Flames of Confusion
• Season 3
  39. Billionaire Birthday Blues part 1
  40. Billionaire Birthday Blues part 2
  41. Left in Tatters
  42. Karaoke Killing
  43. Conan is Kidnapped
  44. Unhappy Birthday
  45. Unexpected Visitors
  46. A Game of Murder
  47. The Last Dive
  48. No Immunity for the Diplomat part 1
  49. No Immunity for the Diplomat part 2
  50. The Book Without Pages
  51. Driving A Bomb
• Season 4
  52. The Mist Goblin Murder (another one hour long episode)
  53. Weapon of Choice
  54. Game Gone Bad
  55. Train Trick
  56. The SunFish Murder
  57. Footsteps of the Hero part 1
  58. Footsteps of the Hero part 2
  59. Shopping Can be Murder
  60. Illustrated Murder
  61. Ghost Ship Murder part 1
  62. Ghost Ship Murder part 2
  63. Gomera!
  64. The Three Fingerprints
  65. The Crab and Whale
• Season 5
  66. Moonless Murder
  67. The Case of the Murdered Actress
  68. Knight Baron Mystery part 1
  69. Knight Baron Mystery part 2
  70. Knight Baron Mystery part 3
  71. The Stalker
  72. Triple Terror
  73. The Ship Wreck Murder
  74. Jinnai, King of Death
  75. Murder and Mahjong
  76. Phantom Thief 1412 (another one hour long episode)
  77. Mysterious Masked Murder part 1
  78. Mysterious Masked Murder part 2
  79. The Revengeful Robber
  80. Dead Hobo
• Season 6
  81. Two Times Trouble, Part 1
  82. Two Times Trouble, Part 2
  83. The Set Up
  84. Massacre Night, Part 1
  85. Massacre Night, Part 2
  86. Find the Kidnap Site!
  87. For the Birds
  88. Vampire Villa, Part 1
  89. Vampire Villa, Part 2
  90. Deadly Art
  91. Hospital Homicide
  92. Mountain Fox, Part 1
  93. Mountain Fox, Part 2
  94. The Other Girl
  95. Richard's Deadly Date
  96. Jimmy Kudo Revealed (FUNimation litterally separated into four episode. This is listed as one because it was supposed to be a two-hour long episode)
  97. The Farewell Wine Murder Case
  98. Potter's Gambit, Part 1
  99. Potter's Gambit, Part 2
• Season 7
  100. The Memories of First Love, Part 1
  101. The Memories of First Love, Part 2
  102. Fame and Misfortune, Part 1
  103. Fame and Misfortune, Part 2
  104. The Mystery of Bludcraven Manor, Part 1
  105. The Mystery of Bludcraven Manor, Part 2
  106. Snapshots of Death
  107. The Mysterious Moletian Case, Part 1
  108. The Mysterious Moletian Case, Part 2
  109. Hit and Run
  110. Recipe for Murder: Part 1
  111. Recipe for Murder: Part 2
  112. School of Ghouls
  113. Prescription for Murder
  114. Scuba Dying, Part 1
  115. Scuba Dying, Part 2
  116. The Mystery Writer Disappearance, Part 1
  117. The Mystery Writer Disappearance, Part 2
  118. License to Die (FUNimation literally split this into two episodes. This is listed as one because it was supposed to be a one-hour long episode)
  119. The Masked Yaiba Murder Mystery
  120. The Big Sting
  121. The Forgotten Bond, Part 1
  122. The Forgotten Bond, Part 2
  123. The Disappearing Weather Girl

• Where to buy:
  • Best Buy
  • Amazon
  • Fry's Electronics