Nyssa Al Ghul returns to Star City to warn Thea that a group of renegade League of Assassins members are planning to attack her.
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16. The Thanatos Guild - Nyssa Al Ghul returns to Star City to warn Thea that a group of renegade League of Assassins members are planning to attack her.
Oliver is determined to embrace his new role as father to William.
Oliver balances being the Mayor, the Green Arrow and a father to William.
A rogue ops team led by Onyx breaks into Kord Industries and steals something lethal.
Just as Oliver starts to get things in order, Black Siren launches another attack.
Slade returns and asks Oliver for help in tracking down his son.
Slade uncovers more clues about his son's last few years.
Oliver and Felicity celebrate Thanksgiving with William, but the moment is interrupted
Barry Allen and Iris West's wedding brings the gang together.
Black Siren and Cayden James look to trade Lance's life for a weapon of mass destruction.
Oliver remains confident that he, Felicity and Diggle can stop Cayden James & Black Siren.
Cayden James ups the ante by launching his plan to take control of the city.
Oliver and Dinah have a major disagreement that endangers the life of one of their own.
Cayden James discovers a secret about the Green Arrow that pushes him over the edge.
The two teams disagree on how the best way to handle Black Siren.
Black Siren makes a shocking decision, & Oliver is stunned that Roy Harper is back.
Nyssa Al Ghul returns to warn Thea that a group of renegades are planning to attack her.
While Oliver and Diggle face their biggest challenge yet.
In his darkest place yet, Oliver wonders if he has failed at everything.
Looking to expand his empire, Diaz and Laurel meet with a coalition of mafia families.
Oliver turns to an old friend to help battle Diaz.
A familiar face returns and the pressure mounts for Oliver.
Oliver struggles with Felicity putting herself in danger.
With a new ally on his team, Oliver engages Diaz in an epic final battle.