The Blacklist: Season 1, Episode 7

1 - 7: Frederick Barnes (No. 47)

After a chemical attack on a subway, Liz and the FBI search for the man responsible. Liz reluctantly calls on Red for his help after she finds her search for the next person on the blacklist, brilliant scientist Frederick Barnes, heading to a dead end. Meanwhile, Liz wants nothing to do with Red after he implicated Tom.