Mark and Mary go to a farm where a plane mysteriously went out of contact for a while and then came back in contact later on. While out in the yard, the farm's owner, Neil Goodson, digs up a rock and the five people on the farm are sent back in time to when Mark and Mary were invited into the house. Mark and the owner's daughter, Becky, notice the time loop, and if they don't stop the loop in time, time could destroy everyone on the farm. (thetvdb.com)