A young Czechoslovak orphan, Loddy Bicek, befriended by an American army sergeant, is brought into the United States as a stowaway by the soldier. He is apprehended, but escapes and makes his way to the sergeant's home town. There, he is befriended by young Danny Mitchell and his dog, Rusty, a K-9 veteran of World War II. A third boy reports Loddy to the authorities, and when Loddy tries to run away, he falls into a deep ravine.

As ratings for Jack Crandall's lifeless airborne traffic reports plummet, a super-size St. Bernard on the lam stows away in his chopper. Crandall's new co-pilot helps send ratings sky-high, but the canine's chronic kleptomania generates girl trouble, jewel thievery, and loads of laughs.

A campy look at the making of the 1964-67 TV series, as told by stars Bob Denver, Dawn Wells and Russell Johnson, as well as in flashbacks (actors play the castaways). Bob/Gilligan: Jon Wellner. Dawn/Mary Ann: Samantha Harris. Tina/Ginger: Kristen Dalton. Alan/Skipper: Eric Allan Kramer. Russell/Professor: Michael Wiseman. Jim/Mr. Howell: Steve Vinovich. Natalie/Mrs. Howell: E.J. Peaker. Sherwood Schwartz: Aaron Lustig.