Barry and Oliver fight the rest of the assembled team after they are mind controlled.
Barry follows a meteor that crashes into the park only to discover it is an alien spacecraft.
Source: What's Filming
Barry saves Oliver and Diggle from a hail of bullets shot by the Vigilante.
Barry has the assembled teams gather at a disused S.T.A.R. labs facility to train for the battle against the Dominators.
The Dominators set up in an old salt mine and the team heads there to rescue the President.