The Invisible Menace Mix-up (S01E09)

S01E01 A Heap of Trouble S01E02 A Creep From the Deep S01E03 The Shocking Creature Feature S01E04 Eastward Ho to the UFO S01E05 The Great Ape Escape S01E06 Dinosaur Daze S01E07 Don't Abra When You Cadabra S01E08 Space Monster Mishap S01E09 The Invisible Menace Mix-up S01E10 The Cuckoo Carnival Calamity S01E11 Begone, You Amazon S01E12 Snow Job Jitters S01E13 The Goofy Gargoyle Goof-Up S01E14 A Toothy Shark Is No Lark S01E15 Where's the Wolf That's the Werewolf? S01E16 Don't Get Mean With the Cobra Queen