"Hank's on Board" is the 187th episode in the Fox TV

Fox Broadcasting Company

Fox Broadcasting Company, commonly referred to as Fox Network or simply Fox , is an American commercial broadcasting television network owned by Fox Entertainment Group, part of Rupert Murdoch's News Corporation. Launched on October 9, 1986, Fox was the highest-rated broadcast network in the...

 comedy King of the Hill

King of the Hill

King of the Hill is an American animated dramedy series created by Mike Judge and Greg Daniels, that ran from January 12, 1997, to May 6, 2010, on Fox network. It centers on the Hills, a working-class Methodist family in the fictional small town of Arlen, Texas...

, and was broadcast as the 10th season premiere

Season premiere

In North America, a season premiere is the first episode of a new season of a given television show. It often airs in September or October, after several months of reruns.-Evaluating the changes:...

, although it was produced for the 9th season.

Plot

After Hank

Hank Hill

Henry Rutherford "Hank" Hill Age 50 animated series King of the Hill. Hank lives in Arlen, Texas and works at the fictional Strickland Propane selling propane and propane accessories. Hank's voice is provided by series creator Mike Judge. The Economist named Hank Hill as one of the wisest people...

 and Bill

Bill Dauterive

Bill Dauterive, born Gillaume Fontaine de la Tour D'Haute Rive is a fictional character on the Fox animated series King of the Hill...

 discover that Dale

Dale Gribble

Dale Alvin Gribble is a fictional character in the animated series King of the Hill. and is voiced by Johnny Hardwick . He is an exterminator, bounty hunter, smoker, gun fanatic, and paranoid believer of almost all conspiracy theories and urban legends...

 and Boomhauer

Boomhauer

Jeff Dexter Boomhauer III, almost always referred to as simply Boomhauer, is a fictional character in the animated series King of the Hill. The character is voiced by series creator Mike Judge, and is known for his nearly incomprehensible speech....

 take secret fishing trips every summer, Hank thinks that they have been trying to avoid Bill. But, when the guys open up a vacation to include their relatives he discovers that Boomhauer and Dale are trying to get away from Hank because he is too bossy. When Hank cuts loose, the guys get into big trouble just as Hank thought, stranded in the ocean next to their fishing boat with no way to climb back up to it. Hank's take-charge nature saves the four in the end, as he devises a means to summon help so they can be rescued.

Meanwhile, Bobby

Bobby Hill (King of the Hill)

Robert Jeffrey "Bobby" Hill is a character on the animated series King of the Hill and is voiced by Pamela Adlon. Bobby is the only child of Hank and Peggy Hill.- Biography :...

 and Peggy

Peggy Hill

Margaret J. "Peggy" Hill is a fictional character in the American animated series King of the Hill.-Biography:Peggy is the matriarch of the Hill family, and the wife of series protagonist Hank Hill. She wears rimless glasses and is generally seen wearing cut-off blouses and culottes...

 search the beach for buried treasure, using a metal detector

Metal detector

A metal detector is a device which responds to metal that may not be readily apparent.The simplest form of a metal detector consists of an oscillator producing an alternating current that passes through a coil producing an alternating magnetic field...

Bobby purchased using the family's grocery money, but soon run afoul of the local beachcombers.