Arrow season 2, episode 20, “Seeing Red,” airs tonight, with Roy going on a Mirakuru-induced rampage.

Previously on ‘Arrow’

Slade tore apart Oliver and Thea’s relationship by revealing to her that Malcolm Merlyn is her father. He attempted to do the same with Oliver and Laurel by telling Laurel that Oliver is the Arrow; however, she eventually accepted it and decided to keep his secret.

Meanwhile, Isabel Rochev revealed that she and Robert Queen were once lovers. And, after Isabel was shot by Diggle, Slade revived her with a dose of Mirakuru while also supercharging his own army. Oliver, though, stole a vial of Mirakuru in the hope of synthesizing a cure.

Read our recap of the last episode, “The Man Under the Hood,” here.

Watch a promo

‘Arrow’ season 2, episode 20, ‘Seeing Red,’ synopsis

If that promo has whet your appetite, make sure to read the official synopsis for the twentieth episode of the season:

ROY SPINS OUT OF CONTROL — The mirakuru sends Roy (Colton Haynes) into an uncontrollable rage and he unleashes on the city. After Roy’s deadly fight with a police officer, Oliver (Stephen Amell) realizes the mirakuru has taken over Roy completely and must figure out a way to stop him. Things get more complicated after Sara (Caity Lotz) declares that Roy is too far gone and the only way to stop him is to kill him. Meanwhile, Thea (Willa Holland) believes she can breakthrough to Roy so she goes on camera at Moira’s (Susanna Thompson) campaign rally to lure him to Verdant. Her ploy works but after Roy attacks Thea, Team Arrow unleashes on him. Doug Aarniokoski directed the episode written by Wendy Mericle & Beth Schwartz (#220).

If you need more goodies to tide you over, we have promotional stills from the episode as well.

Watch a clip from the episode

Watch ‘Arrow’ season 2 online

If you’re unable to catch Arrow season 2, episode 20, “Seeing Red,” live tonight, you’re not out of luck. If you want to watch online, the CW posts new episodes of the show to its site the day after they air.

You can also find new episodes within 24 hours on iTunes and Amazon. The last five episodes to air on The CW are available eight days after broadcast on Hulu as well.

Will you watch ‘Arrow’ season 2, episode 20, ‘Seeing Red,’ tonight?