S1, E6: After many months in space, D.E.R.E.C decides to turn on the artificial gravity so that everyone can exercise properly. Dr. Poacher directs an evil space drone to send some popcorn into the gravity pods, where Gerald can't resist eating it. He becomes gigantic, so Ana and Prof. Eggtop must use science to return Gerald to his normal size and put the spaceship back on the correct course to Mars!