Red and the task force continue to seek revenge as they get closer to Alexander Kirk. The man they hold responsible for Liz's death. It's reveled that Kirk is after Liz's daughter Agnes. The team reluctantly works with Solomon and his crew to get to Kirk's money.
Tom also discovers the identity of his mother.
The GCPD has no choice but to bring Jim in when the new "Electrocutioner" goes on a criminal spree. Meanwhile, Falcone faces a challenge from within when Fish makes her move.
Kevin races to help the ghost of a friend finish her unfinished business before time runs out but at the end he decides he is not ready for her to move on.
Holt Neuro runs some tests on Kate's "little sister". Michael spots a man drowning in a nearby river and brings him in. There is more to this man than meets the eye.