Season 1
Season 2
Season 3
Season 4
S4.E1 ∙ The Paul Revere MysteryS4.E2 ∙ The Spare Parts MysteryS4.E3 ∙ The Skin Deep MysteryS4.E4 ∙ The Itchy Shorts MysteryS4.E5 ∙ The Robot MysteryS4.E6 ∙ The Art Attack MysteryS4.E7 ∙ The Baseball Fan MysteryS4.E8 ∙ The Yearbook MysteryS4.E9 ∙ The UFO MysteryS4.E10 ∙ The Haunted House MysteryS4.E11 ∙ The Moon Rock MysteryS4.E12 ∙ The Egg MysteryS4.E13 ∙ The Jinxed Campaign MysteryS4.E14 ∙ The Movie Star MysteryS4.E15 ∙ The Racetrack MysteryS4.E16 ∙ The Toy Store MysteryS4.E17 ∙ The Mystery Under Our NosesS4.E18 ∙ The Mystery of the Mice That RoaredS4.E19 ∙ The Train MysteryS4.E20 ∙ The Big Cheese Mystery
Season 5
S5.E1 ∙ The Fish MysteryS5.E2 ∙ The Dummy MysteryS5.E3 ∙ The Computed CaseS5.E4 ∙ The Homework MysteryS5.E5 ∙ The Voiced By MysteryS5.E6 ∙ Goblins! Laughing Trees! And Giant Crows! What could be scarier? Nobody knows!S5.E7 ∙ The Screaming MysteryS5.E8 ∙ The Mystery All Screaming Super LoudS5.E9 ∙ Beyond Belief!! Then Nick ManiaS5.E10 ∙ The Stop-Motion Opener Mystery (AKA: Next and Previous)S5.E11 ∙ The Internet MysteryS5.E12 ∙ The Music Notes MysteryS5.E13 ∙ Episode #5.13S5.E14 ∙ Episode #5.14
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