Grant Gustin: First 'Arrow' Appearance Tomorrow Night!

Grant Gustin shows Stephen Amell what happened at the scene of the crime in this new still from this week’s all-new Arrow.

In “The Scientist,” a seemingly impossible robbery at Queen Consolidated’s Applied Sciences Division brings Central City police scientist Barry Allen (Gustin) to town. Citing a similar case back home, Barry offers to help Oliver (Amell) and team with the investigation. Oliver senses there is more to Barry than meets the eye, but he’s distracted by the similarities between this current case and something that happened on the island.

Meanwhile, Felicity (Emily Bett Rickards) takes a liking to Barry, which doesn’t go unnoticed by Oliver. Sin (Bex Taylor-Klaus) asks Roy (Colton Haynes) for help when a friend of hers goes missing. Roy is surprised when Thea (Willa Holland) not only encourages him to help, but joins the search.

“The Scientist” airs Wednesday, December 4th @ 8PM ET/PT on the CW. 20+ pics inside…