In "Arrow's" upcoming episode, "The Return," Oliver travels back to Lian Yu with Thea in the present as his flashback sequences bring him to Starling City under the thumb of Amanda Waller.
In this first clip from Variety, Oliver (Stephen Amell) and Thea (Willa Holland) arm themselves against the dangers of the island with a visit to the grave site of Oliver's father Robert. Just as Oliver begins to realize something is amiss, Slade Wilson (Manu Bennett) welcomes them both back with a violent greeting.
The second clip sees Oliver and Thea bond over their training. Oliver learns just how well Malcolm Merlyn (John Barrowman) trained his sister before they have a heart-to-heart over a campfire dinner. Though Oliver is able to tell Thea about his history as the Arrow, however, he still has a few secrets left -- and one of those secrets may just be the biggest of them all.
"Arrow" airs Wednesdays on the CW at 8 p.m. EST.