Summer of 89: At the end of the decade. the ultimate adventure begins.

The year is 1989 and five seniors at Piedmont High are planning an epic senior prank. Complications arise when someone breaks into the school on the same night and vandalizes $30,000 of school property. Principal Rothchild has no doubt that the senior pranksters are responsible. The principal gives them an ultimatum to come up with the money or go to jail without diplomas. The five friends concoct a plan to raise the money by creating the ultimate teenage fantasy they call “After Hours Adventure.” Will they raise the $30,000 by the end of the summer and graduate high school?