Crisis on Earth 52, Part 1

Crisis on Earth 52, Part 1 is the 14th episode of Birds of Prey season 8. The first part of the 4 part crossover.

Plot
Laurel Lance from Earth 52 comes to Earth One to get help from Team Arrow, Team Flash, the Birds of Prey and the Legends to help fight Lex Luthor on her Earth, as Lex and his team of criminals attack Team Black Siren. Oliver and their teams argee to help and travel to Earth 52 with Earth 52 Black Siren.