In 1872, three priests are set to be executed by the Spanish authorities. But before they are put to death, they suddenly find themselves transported to present day.
When dignified Albert Donnelly runs for Governor, his team moves to keep his slow-witted and klutzy younger brother, Mike, out of the eye of the media. To baby-sit Mike, the campaign assigns sarcastic Steve, who gets the experience of a lifetime when he tries to take Mike out of town during the election.
When three high-school friends invent a time-machine, they decide to use it to go back in time and prevent other youngsters from making humiliating mistakes.
Casper is a time traveller who arrives in the 2020s in an attempt to prevent a major future catastrophe. He meets Holly, a queer black woman he befriends and draws into his plan by giving her his knowledge of the future so that she can make quick money. However, they unwittingly alter the future themselves with their actions, until Doris, another time traveller, arrives to stop them.
Op and Ed, two adorable donut-shaped animals - flummels - accidentally time-travel from 1835 to modern-day Shanghai. There they discover traffic, trans fats, and worst of all, that flummels are now extinct. It's up to this bumbling pair to save themselves and their species...and, just maybe, change the course of history.