'Arrow': Oliver Joins Slade Wilson In "Deathstroke Returns" Preview

The CW has released a promo for 'Deathstroke Returns', the upcoming fifth episode of Arrow's sixth season.

The episode will follow this week's closing moment, in which Oliver Queen (Stephen Amell) got a call for help from Slade Wilson/Deathstroke (Manu Bennett).

As the promo shows, Slade is channeling Finding Nemo while on the hunt for his son, Joe, after he has been taken hostage by mercenaries.

Slade's quest to find Joe has been teased since the season five finale, in which Oliver offered to lend a helping hand as needed. But now that months have passed for Oliver and Slade, it looks like the pair will be taking their hunt to a new level, with Deathstroke living up to his comic namesake - "The One Man Army."

While not hinted at in the promo, the episode will also include quite a few other return appearances, from the ever-mysterious Vigilante, as well as Rory Regan/Ragman (Joe Dinicol). Ragman's return was confirmed back in August, after executive producer Wendy Mericle hinted at his potential return.

"If we bring in anybody new or we'd love to have Ragman back at some point as well." Mericle told ComicBook.com. "We can use the flashback device to tell other people's kind of islands, if you will. And that part is very exciting."

Arrow airs Thursdays at 9/8c on The CW.