It’s been thirty years since Bill (Alex Winter) and Ted (Keanu Reeves) thought they had created a song which would unite the world in peace. It didn’t work and now middle-aged and with grown up daughters, Bill and Ted are once again taken to the future and told they must compose a new song to unite all of space and time. Having tried and failed their whole adult lives, they instead decide to steal a time machine and take the song from themselves in the future. Meanwhile their daughters, Thea (Samara Weaving) and Billie (Brigette Lundy-Paine) also travel through time collecting great historical music figures like Louis Armstrong (Jeremiah Craft) and Jimi Hendrix (DazMann Still) to help their dads compose the song.