What begins as a carefree family vacation at Lake Powell turns into a disaster for Kiko and Maggie Perez and their family after a chance encounter with a suspicious looking stranger above Hite Marina. Suddenly the Perez family finds themselves pulled into an FBI investigation that widens to include murder and a possible plot to destroy Glen Canyon Dam. But are eco-terrorists behind the nefarious plot or is a more sinister group responsible for the deaths potentially horrendous destruction? And can they be stopped in time? The FBI isn't taking the Perez family's warning seriously, so it may be up to Kiko, Maggie and their family to get to the bottom of an explosive situation.