The most excellent adventures of Bill and Ted, aka, The Wyld Stallyns!
In 1988 San Dimas, California, slackers Bill (Winter) and Ted (Reeves) would rather pursue their band the Wyld Stallyns than schoolwork. Ted's father, the local police chief, threatens to send Ted to military school if they should flunk their history class, ruining their dreams of success. The two struggle to assemble a final report for the class, which is to describe how historical figures would see modern-day San Dimas.
The music of Bill and Ted's band, Wyld Stallyns, has created a utopian future society. Chuck De Nomolos, who detests this society, steals one of the time-traveling phone booths and sends two robots modeled after Bill and Ted back to the late 20th century to prevent Bill and Ted from winning the San Dimas, California Battle of the Bands. Rufus attempts to stop De Nomolos but seemingly becomes lost in the circuits of time.
Two aging rockers turned middle-aged dads, who were once told they'd save the universe during a time-traveling adventure, are inspired to resume trying to crank out a hit song and fulfill their destiny.