While Beanie and his grandmother are dropping off Mom at the train station, Admiral Bubbles temporarily escapes, and makes his way to the control station where he discovers that an experimental amphibious Air Force jet is on one of the trains. Making a plan to steal it, he makes off with the Station Master’s key which controls the entire train yard, but he is recaptured by. Back at Beanie’s home, he builds a spider-like robotic crawler to transport his fishbowl, and scurries back to the train yard to steal the jet. But Beanie and Nana are already in a taxi, heading to pick up Mom, and the three converge at the station. Pursued by Beanie, Admiral Bubbles manages to board the train car and prepares for takeoff but he doesn’t count on Beanie climbing aboard as well, and soon the two of them find themselves wrestling for the controls of the jet as it heads toward a high speed crash—with the very train that Mom is returning on!