On TJ's 18th birthday, a stranger delivers him a key from his father, last seen as he was hauled off to prison eight years earlier. With the key is an address for a proposed meeting – 3000 miles away and in two weeks. The key unlocks a timeworn 1968 convertible, with a coffin welded to its floor. With each decision that follows, TJ plunges deeper into the mysterious and beautiful landscapes we all navigate – on our own, with our tribe, through the shifting turns of the road ahead.

Le jour de ses 18 ans, TJ reçoit une clé de son père, un ancien escroc. L'objet lui permet d'accéder à une décapotable 68 afin de traverser l'Amérique.