A new metahuman, Sampson, gains the ability to ignore pain and becomes a threat to Star City. Oliver is forced to trust his team if he wants to defeat the man. Meanwhile, Thea makes a mistake while doing her job as mayor's chief of staff, and word of Quentin's hiring gets out. Meanwhile, Diggle decides what to do next when he is prosecuted by the U.S. military.

When Church learns Green Arrow's secret identity, he makes plans to kill Oliver... and succeeds. The team learns what Church's plan is and heads out to stop him.