After a tumultuous few weeks dealing with Oliver Queens disappearance, assumed death and return to Starling City, next week's "Arrow" seems relatively calm at first. The trailer for the episode, titled "The Return," starts off peaceful with Oliver and his sister, Thea, enjoying a seemingly normal camping trip. "Seemingly" normal because that camping trip just so happens to be taking place on Lian Yu -- the hostile island that transformed playboy Oliver into a cutthroat vigilante.

"It's like there's no more secrets between us," says Thea to Oliver in the promo, right before all hell breaks loose on the island. The pair run from danger, fear for their lives and fall prey to traps that Oliver set himself years ago. Although he doesn't make a full appearance in the footage, the episode also features the return of the deadly Slade Wilson (Manu Bennett). If the Queens are going to get out alive, they might just have to take Malcolm Merlyn's advice and "regain that killer instinct."

You can check out the trailer and episode synopsis below. "The Return" airs on February 18 on the CW.

THE RETURN OF DEATHSTROKE AND TOMMY MERLYN -- Malcolm (John Barrowman) puts Oliver (Stephen Amell) and Thea (Willa Holland) in a dangerous situation that lands them on Lian Yu with Oliver's former enemy, Deathstroke (guest star Manu Bennett). A flashback reveals when Oliver and Maseo (guest star Karl Yune) returned to Starling City to retrieve the Omega bio weapon, and despite being under strict orders from Amanda Waller (guest star Cynthia Addai-Robinson) not to reveal himself to anyone, Oliver looks in on his family, Laurel (Katie Cassidy) and Tommy (guest star Colin Donnell). Dermott Downs directed the episode written by Marc Guggenheim & Erik Oleson (#314). Original airdate 2/18/2015.