When Flash's friend Rick shows up in Binghamton, New York, with an interstate weed delivery, he jumps at the chance to escape his wife Ronnie's affair with her middle-aged boss. On the speed-fueled drive to Fort Worth, Flash dodges a highway stalker and recalls his military service on Adak, a desolate cold war outpost where Seabees bravely defended their country with marijuana and LSD. Hitchhiking west from Fort Worth, Flash confronts Texas Rangers, amorous witches, armed felons, and good Samaritans, all offering advice and misdirection. But his dreams of starting fresh in California recede like a spent wave, his money gone and no chance of a job. Ronnie offers reconciliation and Flash must decide how much he still trusts the seductive pull of the irresistible campus radical he married before the draft descended on their lives.