As Damien prepares to initiate nuclear armageddon, the team races against the clock to find the one man who can stop the launches: the Calculator.
The Bug-Eyed Bandit hacks the prison computers and engineers an early release for herself... and then goes Felicity and her spinal implant. Meanwhile, Damien adjusts to life in prison and makes contact with an ally.moreless
While the team battles a former ally working with a new villain, Felicity decides to step aside rather than give a presentation that can save Palmer Tech. In the past, Oliver fights the darkness within him with the help of an old friend.moreless
Jessica Danforth, an old family friend of the Queens, decides to run for mayor of Star City to provide a source of inspiration. A crazed hitman, Lonnie Machin, targets her for death and Oliver and his team are forced to step in. In the past, Oliver infiltrates the island and finds a poppy field run by Baron Reiter.moreless
Rebecca and Doc are closer to finding the man who might be the key to finding the secrets behind the returning criminals. A discovery beneath Alcatraz brings Hauser closer to the truth.
A husband disposes of his wife, and only a psychic can lead the police to the killer... but Monk is skeptical.