Sam and Dean are once again on the FBI's "Most Wanted" list when two Leviathans clone the brothers and go on a killing spree. The subject of a nationwide manhunt, Sam and Dean need to drop off the grid so Bobby sends them to Frank Deveraux, a quirky surveillance expert, for help.
Meanwhile, Bobby continues to search for a way to kill the Levianthans, or at least slow them down, so the real Winchesters can stop their evil doppelgangers.
original airdate--October 27,2011 rating--3.28 million
songs--Theme Song--"Help I'm Alive" by Metric
Antagonists: Esther and Ghosts.