Sasquatch island

Darius, Alec, Jasmine, and Sammi (the Wilderness Warriors) are on a late season camping trip to Pine Island in Lake Michigan, with Sammi's father, Mr. Horton, as their guide; but soon they find themselves followed by something that seems to be almost human, and their base camp is torn up--then one morning they wake up to find Mr. Horton missing, and suddenly the kids are in a fight for survival.