Season Guide
Arrow Season 4
Season 4 Review
⚠ Spoiler alert Season notes below reveal how the story develops.
Season 4 of Arrow aired 2015-2016.
Episodes
1
When a new gang, the Ghosts, hit the newly renamed Star City, Diggle, Thea, and Laurel find themselves in over their heads. Laurel and Thea interrupt Oliver and Felicity's quiet…
2
Moira's friend Jessica Danforth decides to run for mayor of Star City. While Team Arrow tries to protect her, Oliver realizes that the Lazarus Pit is taking its toll on…
3
Damian brings in a metahuman, Double Down, to take care of Green Arrow. Meanwhile, Diggle and Green Arrow continue working separately because of their past. And Laurel and Thea travel…
4
Team Arrow discover that a gang of crooked cops is robbing drug dealers and selling their product. Oliver turns to Quentin for help, but soon learns that he is working…
5
Sara goes on a killing spree, and Oliver realizes that when she was brought back, her soul didn't come back with her. As Sara stalks the person who killed her,…
6
Felicity convinces Oliver to launch a desperate rescue attempt to recover a miniaturized Ray from Damien's captivity. Meanwhile, Sara finds herself giving in to the bloodlust of the Lazarus Pit,…
7
While Green Arrow and his team set out to recover Andy from Damien's forces, Ray tells Felicity that he's not sure what he's going to do with his future. Meanwhile,…
8
The two teams of superheroes take refuge at a farmhouse while Carter trains Kendra in her newfound powers. However, when things go horribly wrong, Flash timejumps and tries to prevent…
9
Oliver goes public with Damien and HIVE, but is unprepared for the consequences. Meanwhile, Malcolm arrives in Star City to help his daughter, and Felicity discovers that Oliver was going…
10
After Damien's attack on someone close to him, Oliver goes on a bloody manhunt trying to find the HIVE leader. However, Anarky returns to Star City with his own plan…
11
Shadowspire, a rogue military organization with ties to Diggle's time in Afghanistan, launch an attack on the A.R.G.U.S. agents that exposed them years before. Diggle has no choice but to…
12
Roy returns to Star City... working for a new villain, the Calculator, a genius computer hacker who plans to bring the city to its knees. Meanwhile, Thea's condition worsens, and…
13
Oliver refuses to kill Malcolm in return for Thea's cure, and Malcolm refuses to surrender rulership of the League to save his daughter. Civil war tears through Star City as…
14
While Oliver preps for a debate, Quentin tries to shield his new girlfriend Donna from the truth that he was working with HIVE. Both men find themselves with larger problems…
15
Damien demands that Oliver resign as a mayoral candidate, or he will kill William. In response, Oliver brings in a superhuman ally, Vixen, to help him track down his son.
16
Cupid returns to Star City and vows to prove to everyone that love is death. Meanwhile, Oliver and Felicity deal with the aftermath of their break-up. In the past, Oliver…
17
After hacking her way out of prison, Brie Larvan makes her way to Palmer Tech to steal Felicity's spinal implant. The villain uses her robot bees to cut off all…
18
Team Arrow are forced to trust Andy to help them track down the idol after Malcolm steals it for Damien. However, Oliver and Diggle disagree on whether they can trust…
19
Star City reels under the news that ADA Laurel Lance is dead. However, a new Black Canary emerges... and will kill anyone who she holds responsible for Damian's crimes.
20
Oliver calls in a favor with Constantine and goes to meet with an immortal shaman who can teach him how to fight Damien's dark magic. Meanwhile, Thea takes a break…
21
The team is forced to find Noah Kuttler--Felicity's father--to disarm the nuclear missiles that Damien has taken control of. However, Damien has sent two of his men to kill Noah…
22
While Green Arrow and Spartan try to rescue Thea from Tevat Noah, Felicity, Noah, and Curtis try to shut down Rubicon for good. However, Damien has a hacker of his…
23
With the world counting down to nuclear armageddon, Felicity and Curtis must find a way to stop the missiles. Meanwhile, Oliver tries to convince the citizens of Star City that…