Action was last seen leaving the Ramada Inn Lounge on U. S. 19 north and State Route 60 in Clearwater at 11:30 p.m. on May 26, 1978. She has never been heard from again. She was carrying a brown shoulder bag at the time of her disappearance.

Action had moved in with her parents six weeks before her disappearance, after she filed for divorce and was forced to drop out of Stetson University due to an illness. She had recently taken a job at the Kapok Tree Inn. She had just gotten her paycheck and had gone out that night to celebrate with friends. Her parents stated they did not attempt to control her life, but she was always good about keeping them informed where she was and what she was doing. Her parents reported her missing the day after she was last seen.

Four days after Action's disappearance, her car, a white two-door 1969 Chevrolet Chevelle or Chevrolet Malibu, turned up abandoned on U. S. 19 in Tarpon Springs, Florida. She had been raised in that city and graduated from Tarpon Springs High School. A substantial amount of Type O blood was spattered inside the vehicle and on the front seat. There was enough blood to determine that whoever's it was had sustained a severe injury. Authorities couldn't determine whether it was Action's blood, although it was her type. Her shoes were also inside the car, but there was no indication of her whereabouts at the scene.

Action is considered to be missing under suspicious circumstances and foul play is suspected in her case, which remains unsolved.