Майбутнє. Земля зазнає нищівної атаки прибульців, які не залишають людям шансів на виживання. Останньою відчайдушною спробою переламати ситуацію є мобілізація землянами солдатів з минулого. Зусиллями вчених вони переносяться у часі і просторі, щоб битися у новій світовій війні.

A girl mysteriously receives advice from her future self and as a result her group of friends, along with a newly arrived, troubled classmate, learn how to be better friends and a better community.

As the end approaches inexorably, the last humans, living millions of years into the future, send a message to the humanity of the present that is both a plea for help and a warning, but also an epic tale of evolution, decline and hope.

After an open mic night, JB and KG get a message from Michael Keaton who tells them that the time-space continuum has been disrupted at the Ford's Theater in 1850 and only Tenacious D can fix it.

Sixteen-year-old Logan is an adolescent uncomfortable in his own skin. Only his science fiction dreams of a better life on Mars draw him away from his ordinary life, which is as equally difficult at home or at school, where he's only seen as an aggressive loser. One evening, he receives a visit from a mysterious man who insists that he has come from the future and that he is also Logan, but forty years older. He then asks the younger Logan to carry out a mission as unexpected as it is important: to save humanity.