Uncle Grandpa had sent a pair of pants back in time to 1492 but the pants were suppose to go to 1992, but Christopher Columbus wouldn't give the pants back, and if Uncle Grandpa and Pizza Steve don't get the pants back by the end of the day, 1992 would call the time police on Uncle Grandpa.
Uncle Grandpa deve riportare dei pantaloni nel 1992 ma si sbaglia e li invia nel 1492, così viaggia indietro nel tempo fino al momento in cui Colombo sta per scoprire l'America.
Oncle Grandpa voyage dans le temps pour récupérer son pantalon, mais se retrouve en conflit avec Christophe Colomb.