As Madison struggles to keep Nick from crippling withdrawal, Travis ventures out to find his son before Los Angeles falls.
When Norma's brother, Caleb, appears, Dylan must help build bridges. Meanwhile, Norman gets to know a townie girl and Norma's battle to stop the bypass gets a new ally.
After Stephen breaks ULTRA protocol during a training exercise, Jedikiah's mysterious boss insists on meeting him. After learning Jedikiah is unable to help him Stephen turns to John who is only interested for selfish reasons.
Elsewhere Cara and John disagree on a dangerous plan when some of The Tomorrow People become desperate to attend a party in the outside world. And when Stephen again bails on plans with Astrid she decides to find out what he is really up to.
While the task force shuts down a business, Linden and Holder unite as they pursue "the voice" from the video. Seward becomes motivated to obey orders.
The Dark Archer visits a seismologist to further The Undertaking. Meanwhile, Laurel makes a decision after Tommy tells her the truth, and Roy and Thea try to find The Hood. In flashback, Fyers tells the captive Oliver, Shado, and Slade of his plans for the missiles and for Yao Fei.moreless