"We should acknowledge the fact that going after our former teammates may be a line we can never uncross."
"I agree. But they crossed it first.
John Diggle and Oliver Queen
"Collision Course" is the fourteenth episode of the sixth season of Arrow, and the one-hundred-twenty-ninth episode overall. It aired on March 1, 2018.


Oliver, Diggle and Felicity disagree with Dinah, Curtis and Rene on how to handle Black Siren. The two teams face off and a fight ensues.[src]


  • Rene refers to Curtis as "Mr. T" and says that he "[pities] these [fools]", referencing the actor and retired professional wrestler of the same name and his catchphrase, "I pity the fool".
  • This episode shares a similar premise with the MCU film Captain America: Civil War, where two vigilante teams, once a unified group, fight over a disagreement on how to handle an adversary of theirs, with both sides having their own reasons and ideas of preserving justice.
  • The alias that Laurel uses, "Siu Jerk Jai", is a Cantonese approximation for "Little Bird", which was Black Canary's nickname in the comics.
  • Quentin mentions Hunter Zolomon, Adrian Chase, and Cayden James as father-figures that Laurel has taken on. This is the first time that Laurel's time as Zoom's lieutenant is mentioned on Arrow.
  • The title refers to the fight between Team Arrow and New Team Arrow.
  • This is the fourth episode of the series to feature a member of Team Arrow (in this case, Dinah Drake) as an antagonist, after Roy Harper in "Seeing Red", Oliver Queen in "Al Sah-him", and Sara Lance in "Haunted".




Community content is available under CC-BY-SA unless otherwise noted.