Agent Smith is the secondary antagonist of the 2016 Arrowverse annual crossover Invasion! He dislikes the vigilantes' and Lyla Michaels' methods of dealing with the upcoming invasion planned by the Dominators. The Aliens view metahumans as a threat after determining both Cisco Ramon and Barry Allen to be dangerous.
Role in the crossover[]
He openly disliked how Lyla has taken over ARGUS, especially because she is doing the opposite of what her predecessor Amanda Waller, who always agreed with him. He tries to have Team Arrow, team Flash and the Legends killed and hand over the Flash in an attempt to prevent the Dominator invasion.
After learning what Smith did, Kara exposes him to President Susan Braydon of Earth-1's United States of America, who subquently demotes him and assigns him to one of the American military bases in Antarctica.