The Flash | Episode 29 - 'Invasion!' 'The Present' 'Borrowing Problems from the Future' 'Dead or Alive'

Summary: Derek and Steve tackle an epic line-up of episodes from "The Flash" starting with the four-part Heroes vs. Aliens crossover that brought together Supergirl, Team Flash, Team Arrow and the Legends of Tomorrow. From there, the duo cover the mid-season finale, premiere and latest episode of the season.