Ridley and pals suit up in astronaut gear to find a lost exhibit in outer space. The Eyes must keep quiet while looking for a drum-loving mouse friend.
Peaches learns to ask for back-up during a mission in space. Strange things start to happen when Mr. Peabody and Lonny try on masks from a new exhibit.
Ridley goes treasure hunting in an old mine to save her family's tree house. Ridley and her mom try to find a new home for the museum's greeting robot.