Where Have All the Monsters Gone? (S01E22)

S01E01 The Switching Hour S01E01 Things Begin Where They End S01E02 Monsters, Get Real S01E02 A New Friendship Awaits You S01E03 Snorched if You Do, Snorched if You Don't S01E03 You Are the Master of Your Own Emotions S01E04 Curse of the Krumm S01E04 A Dinner Guest Will Surprise You S01E05 You Are a Skilled Mentor by Nature S01E05 Krumm Goes Hollywood S01E06 I See a Baby in Your Future S01E06 Monstrous Makeover S01E07 You Will Have a Night to Remember S01E07 A Wing and a Scare S01E08 Your Past Will Inform Your Present S01E08 Krumm's Pimple S01E09 You Will Help Someone Take a Chance S01E09 Monster Hunter S01E10 A Mysterious Invitation Awaits You S01E10 Monsters Don't Dance S01E11 Gone Shopp'n S01E11 You Will Experience a Loss S01E12 Old Monster S01E12 The Fortune You Seek is in Another Cookie S01E13 Mother May I? S01E13 Things End Where They Began S01E14 Don't Just Do It S01E15 Joined at the Hip S01E16 Smile and Say Oblina S01E17 The Great Wave S01E18 Cold Hard Toenails S01E19 Attack of the Blobs S01E20 Chip off the Old Beast S01E21 The War Is Over S01E22 Where Have All the Monsters Gone? S01E23 Simon Strikes Back S01E24 The Ickis Box