CHiPs

While Ponch, Jon, & Baricza respond to a traffic accident, Baricza's father has biplane trouble. The CHP quickly responds.

While enjoying coffee, Ponch and Jon learn that Mr. Baricza is being threatened and that Lyle Pickett hassles all who use pesticide on their fields. Later that day, Baricza drives into another car after taking a nap.

Later, Turner and Baricza almost collide while Ponch and Jon arrive to nab the car they were chasing. Although that was Turner's fault, Baricza blames himself. He decides to quit the CHP because he couldn't handle doing both crop dusting and highway patrol.

Baricza calls in Ponch and Jon to check out some crop vandalism. Ponch finds a campsite receipt on a destroyed field. When Ponch follows up, he meets up with Lyle's campsite neighbor, Shawna, who gives them the lead to check up on Lyle at the V.A. Hospital.

Meanwhile, Barry makes an emergency landing when Lyle's truck interferes. After repairs, Barry is flying again. At the V.A. Hospital, Ponch and Jon learn that Lyle did defoliation in Vietnam. He has been mentally disturbed ever since.

When Getraer brings Barry his termination papers, he reveals he doesn't want to take over the crop dusting business like his dad thought. After Getraer leaves, Lyle Pickett shows up bearing Molitov Cocktails. Ponch and Jon chase him but get caught in the mud. They get a ride with Pete Baricza while Barry Baricza uses the biplane to chase Lyle. When Barry leaves Lyle literally in the dust, Lyle rolls his truck and is caught by Ponch and Jon.

In the end, Barry tells Getraer he doesn't want to quit and rips his termination papers. Ponch and Jon give him the thumbs up and the credits roll over a picture of the biplane in flight.