While the Arrow trains Roy how to control his anger--and his super-strength--Bronze Tiger steals a prototype of Malcolm's earthquake machine to sell to an arms dealer. Meanwhile, Laurel discovers that she's being disbarred and goes out of control, and Walter has an offer for Moira. On the island, Oliver wonders whether to tell Slade the truth about how Shado died.

As Laurel continues to unravel, Oliver and Lance try to convince Sara to stay in Starling City and finally reunite with Laurel and Dinah. However, Sara’s fellow League of Assassins member, Nyssa, comes to bring Sara back to the fold, but when Sara refuses, Nyssa kidnaps Dinah. Realizing she’s putting her family in danger by staying in town, Sara considers re-joining the league.

The Mirakuru sends Roy into an uncontrollable rage and he unleashes on the city. Oliver realizes the Mirakuru has taken over Roy completely and must figure out a way to stop him.