When a dam fails and rushing waters sweep away their adult supervisors, five middle schoolers on a white-water rafting adventure are left alone with few supplies and the opportunity to forge powerful bonds as well as develop dangerous disagreements.

Lucy, with her mother and her photographer father, has just moved to a small rural community in New Hampshire, and with her new friend Nate she plans to spend the summer taking photos for a contest, but pictures sometimes reveals more than people are willing to see.

Time has gone wrong, and best friends Dak Smyth and Sera Froste, together with the young Hystorian Riq, must use the infinity ring to travel back to one of the Great Breaks--a mutiny on the Santa María--to correct history and defeat the SQ.