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Milo, Zack and Melissa go to school after sunset to retrieve Melissa's math book. Unfortunately, she leaves the spare key inside the locked classroom, so the three go on a "quest" in search of the mysterious janitor, otherwise known as the "key-keeper".
Episodes
1Going the Extra Milo 2Sunny Side Up 3Rooting for the Enemy 4The Undergrounders 5The Doctor Zone Files 6The Note 7Party of Peril 8Smooth Opera-tor 9Worked Day 10Wilder West 11Family Vacation 12Murphy's Lard 13Secrets and Pies 14Athledecamathalon 15The Substitute 16Time Out 17We're Going to the Zoo 18School Dance 19Battle of the Bands 20The Math Book 21The Little Engine That Couldn't 22The Llama Incident 23Missing Milo 24Star Struck 25Disaster of My Dreams 26A Clockwork Origin 27Perchance to Sleepwalk 28Some Like It Yacht 29Backward to School Night 30World Without Milo 31The Race 32LoveTogboggan 33The Island of Lost Dakotas 34Fungus Among Us 35Milo's Halloween Scream-A-Torium! 36A Christmas Peril