An awkward high school senior, Ian, is desperate to lose his virginity and escape his sexless reputation. He lives with his overbearing family and harbors a secret crush on his best friend, Felicia, while enduring constant mockery from his raunchy friend, Lance. Ian's romantic prospects seem hopeless until he meets 'Ms. Tasty,' a sultry woman online who lures him with the promise of sex if he drives to meet her in person. When Ian steals his brother's prized 1969 Pontiac GTO Judge to rendezvous with Ms. Tasty, he persuades Lance and Felicia to join him on a cross-country road trip under the guise of sightseeing.

The trio sets off on a chaotic and unexpected adventure filled with eccentric characters and bizarre situations. Along the way, their friendship is tested and personal secrets are revealed. As they get closer to their destination, Ian must confront the realities of his online relationship and grapple with the lessons of true attraction and intimacy. Meanwhile, unbeknownst to the young travelers, Ian's brother Rex, a hot-tempered tough guy, discovers his car missing and embarks on a mission to track down Ian and the GTO, leading to further complications and comic mishaps.