Time Warp

Helen is an ordinary eighth grade girl who gets sucked into a time warp on bike trip with her class. A bit of an outsider, she is brave and prone to speak her mind.
Bronson is Helen's classmate, who, when trying to help Helen in a biking accident, also gets sucked in.

The time warp takes them only minutes into the future, saving them from a deadly nuclear blast that destroys everyone in North America, except them. They struggle to stay alive as they try find the cause of the mass wipeout, finding a connection along the way that they never expected.