Bobby attempts to make amends after he accidentally wallops Hank's idol, Willie Nelson, in the head with a golf club.
Hank catches Bobby furiously windmilling his beloved Guild guitar, "Betsy." Bobby explains that he was playing the instrument with a piece of cheese, like his favorite comedian, Celery Head. After examining the guitar, Hank realizes his son chipped Betsy's bridge. The next day, Bobby crashes Hank's lawn mower into the front of his truck. Shortly thereafter, the boy uses Hank's pitching wedge to hit clumps of dog excrement. When Hank tells his wife that their son seems bent on destroying everything he owns, Peggy suggests he take Bobby golfing. At first, Hank dismisses the idea outright. But when Bobby tells his father that his two heroes are Gameboy champ Eddie Stillson, and Howard Adderly, the father of bizarre worm-child Jason Adderly, Hank decides he needs to take his son golfing immediately.
Before he takes his son golfing, Hank drives Betsy to a local guitar shop. Along the way, Hank tries to think of a suitable hero for Bobby. Hank tells his son that his own idol has always been Willie Nelson, as he was born in Texas, plays the guitar, and loves to golf. After dropping Betsy off for repairs, Hank joins Dale, Bill and Boomhauer for a game of golf. Bobby pulls his father's club from a bag and chips a ball right into a cup. Impressed, Hank allows Bobby to tee-off on the next hole. Bobby takes a mighty swing...and lets go of the club, which gracefully tumbles through the air until it strikes another golfer in the head. The foursome rush to the hapless victim's side, only to discover the man is none other than Hank's hero, Willie Nelson.
After apologizing for the accident, Hank asks Nelson for his autograph. Nelson takes a pencil in hand, but still suffering from his injury, he slumps forward into the steering wheel of his golf cart, leaving a signature that is nothing more than a straight line. Before Hank has a chance to tell Willie that he is his hero, the singer's cart picks up speed and races down a hill. Convinced he cost his father the opportunity of a lifetime, Bobby rides his bicycle (with a guitar case strapped to the handlebars) to Willie Nelson's mansion (now property of the United States Government). He finds Nelson playing Gameboy in a nearby trailer. Bobby phones his father with news that Nelson has invited him to a barbecue party. When Hank arrives, he finds the singer strumming Betsy. Willie flips the guitar around and shows Hank that he autographed the instrument (the signature is identical to the straight line autograph from the golf course). Hank telephones his wife and invites her over to the barbecue. When she arrives, Peggy meets Dennis Hopper, who begins to flirt. Furious at Hank for showing the guitar so much attention, Peggy stomps towards her husband. But she melts when she hears Hank singing a song about how much he loves her.