Billy Barber, Sarlene Thorus, and Carl Woodson are friends who just finished Grade 5 at Retti Elementary School in Reindeer Falls. They have just found out that, by coincidence, they would be all on vacation at a popular tourist destination called Milky Lake together, the first time ever that they would all be on vacation together. When they get to Milky Lake, with Billy's younger brother Kyle and Carl's younger sister Karlee, they decide to go north...