"Arrow" season 5 introduced its main villain and the new set of recruits that Oliver Queen, also known as the Green Arrow (Stephen Amell), is training to become official members of Team Arrow. However, in episode 4, those recruits will be going up against their own mentor when Oliver decides to break the law even further and rescue someone out of prison.

The official synopsis, as per Comic Book Movie, reveals that Oliver is planning to break John Diggle (David Ramsey) out of prison. It was previously speculated that Floyd Lawton, or Deadshot (Michael Rowe), may be the one to help Diggle, given that a previous episode revealed Deadshot was alive, but it turns out, Oliver will be the one coming in to help his friend.

However, Felicity (Emily Brett Rickards) is not on board with Oliver's plan, and she says she is not going to aid him in pursuing this task. The trailer for the episode also shows that she is not the only one against Oliver's idea of breaking into a prison as his three recruits, Curtis (Echo Kellum), Evelyn (Madison McLaughlin), and Rene (Rick Gonzalez), try to stop him.

It is likely that this encounter will not last long as the trailer hints that Oliver will take all three down quickly. The synopsis also reveals that they will not have the time to stop Oliver as Felicity will discover that Tobias Church (Chad L. Coleman) is launching an attack on the city, and she may send the recruits to deal with this problem entirely on their own.

As with previous episodes, flashbacks regarding Oliver's past with the Bratva will be explored even further. However, it is uncertain if the upcoming flashback sequences will further reveal how and why Oliver returned to the island he was initially found on, Lian Yu.

"Arrow" season 5 episode 4 will air on Oct. 26 at 8 p.m. ET on The CW.