This Television drama begins with two brothers searching for their father, who had raised them to battle all things that go 'bump in the night' after his wife Mary was murdered by a malevolent spirit when the boys were young. They set out on their journey fighting evil along the way until they finally meet up with their father. He is shocked at the revelation that Sam is able to see into the future and the demon tells Sam that 'he has plans for Sam and all the children like him.' However, when their father dies striking a deal with the very same devil who had killed his wife, the series centers on the brothers going after the very same demon that tore their family up. But then the plot takes a dramatic turn when threats of Sam's abilities arise.