When the Sawyer family is under attack by Burt Hartman, his father Jed II hides baby Carl in a box underneat the floor as to protect him. He is found by Sheriff Hooper unharmed in the aftermath. He's sent to foster care. But he's soon retaken by his grandfather Earl and father.
On his 18th birthday, taking on the name Nick Reeve and pretending to be in love with Samanta (Heather's best friend), he sets up the trap to have Samantha, Amanda, and Tyler killed so that he can lure Heather to the school. There, he, along with Earl and Jed II reveal to Heather that she, Nick/Carl, and Jed III are triplets.
He's killed by Henry with an ax.