The creation of a powerful new weapon puts the Orville crew — and the entire Union — in a political and ethical quandary.

Oliver, John, Laurel, and Tatsu seek out an important person within the Monitor’s plan. Connor has a heart to heart with his brother.

After months of covertly pursuing Dante, Diggle and Lyla finally have a solid lead on the elusive terrorist, so they deploy the ARGUS Ghost Initiative to apprehend him. Meanwhile, Oliver…

The past comes back to haunt both Oliver and Laurel. Curtis is upset when he discovers that Diggle and Lyla have restarted The Ghost Initiative with Diaz, China White, Kane…

China White, Cupid and Liza Warner break out of Iron Heights and head to Star City for revenge. Oliver tries to bring in the newly formed girl gang but the…

Ed and the crew race to save a small group of survivors on a planet about to be destroyed by its sun. Meanwhile, Bortus and Klyden start marriage counseling when…

Ed and Kelly consider the possibility of reforging their relationship, but Kelly soon crash-lands on a planet in another universe with Isaac and Gordon.

After the Orville crew defeats a Krill attack on a brand-new colony, the Union sends Ed and Gordon on a dangerous undercover mission to infiltrate a Krill ship and obtain…

Thieves hijack medical supplies sent to Glades Memorial. Oliver gets into a heated battle with China White and her new partner, the Bronze Tiger, over the supplies. Meanwhile, Laurel makes…

Oliver and Diggle learn that Deadshot is still alive and his next target is Malcom. Malcom invites Tommy to attend a benefit honoring Malcom for his work with Starling City…

Felicity tells Oliver he’s all work and no play, so he asks Detective McKenna on a date. A jewel thief named Dodger hits Starling City and targets someone very close…

As Oliver and Helena grow closer, Oliver trains her to be his ally, complete with showing her how to use a crossbow. Diggle disapproves of Oliver sharing his secret with…

Oliver encounters a mysterious woman, Helena Bertinelli, daughter of mob boss Frank Bertinelli, who he can finally be himself with, but he soon comes to realize she’s hiding dangerous secrets…

Oliver heads to the courthouse to get his death certificate repealed and is pleasantly surprised to run into Laurel, who is there prosecuting Martin Somers, a criminal with ties to…

97 years after a nuclear war, human kind is living in space. 100 juvenile delinquents are sent down to Earth to see if the planet is habitable.