Preview the game changing Arrow season 2, episode 15, “The Promise,” with the episode synopsis, promotional stills, and producer’s preview.

In the shocking final moments of the last episode, Oliver came face to face with Slade, who was in the middle of a meeting with Moira. With the Arrow cave filling up, Oliver will need all the help he can get against his old friend.

Read our synopsis for the previous episode, “Time of Death,” here.

The official synopsis for Arrow season 2, episode 15, “The Promise,” reads:

THE TURNING POINT — Oliver (Stephen Amell) is shocked when he learns that Slade (Manu Bennett) has come to Starling City. Back on the island, as Oliver, Slade and Sara (Caity Lotz) prepare to take over the freighter from Ivo (guest star Dylan Neal), Sara pulls Oliver aside and tells him he needs to kill Ivo to prevent him from telling Slade what happened with Shado. Oliver feels immense guilt over the situation but realizes Slade’s growing rage from the Mirakuru makes him unpredictable and he could turn on his friends if he thinks Oliver is to blame. Oliver agrees to kill Ivo and the battle begins. Glen Winter directed the episode written by Jake Coburn & Ben Sokolowski (#215).

Meanwhile, promotional stills for the episode show interactions between Slade and the Queen family, as well as to what is bound to be a major battle on the island:

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And finally, executive producer Marc Guggenheim’s preview teases “the biggest episode we’ve ever done on the show,” as it will feature “two iconic moments in the life of our series”: Oliver putting on the hood and Slade the Deathstroke mask, each for the first time.

Arrow season 2, episode 15, “The Promise,” airs Wednesday, March 5 at 8:00 p.m. ET on The CW.

Will you watch ‘Arrow’ season 2, episode 15, ‘The Promise’?