Sean Penn and Robin Wright's son, Hopper, pleads no contest in Nebraska drug case

The son of actors Sean Penn and Robin Wright has pleaded no contest to a misdemeanor in his Nebraska drug case.

Twenty-four-year-old Hopper Penn and his girlfriend, 26-year-old Uma Von Wittkamp, were arrested during a traffic stop on April 4 on Interstate 80 in southeastern Nebraska.

The Nebraska State Patrol says a search of their vehicle turned up 14 grams of marijuana, four amphetamine pills and 3 grams of psychedelic mushrooms.

Both were initially charged with felony drug possession. Court records show they later pleaded no contest to the misdemeanor charge of attempt of a felony. Each was ordered to pay $1,000.

A no-contest plea allows a defendant to not admit guilt but acknowledge that there's enough evidence for a conviction.