Professor Katmandu selects Mip to take care of his prized plant while he is away on a trip. Mip doesn’t take this duty seriously and the other two Trekkers, as always, step in when Mip shirks his responsibilities A mission calls for them to locate a lost flag of the first expedition to the Arctic. They discover through a game of capture the flag with penguins that Mip, in a series of mishaps, becomes a responsible member of the trio and saves the day and the mission.