This was kind of boring to me, but we did need some more build up of Steve's Character.

Maru is Poison....well her group is as that is what they are called. They find Diana and Steve on the fake Themysicra. They flew in on a Russian aircraft. Steve's team bails them out though. They put Diana in a Mental Asylum as they go to find out what happened to Etta. Diana is under the guise of Diana Prince, glasses and ponytail.

Oh, there is a Nightingale reference as well. (They called the movie that while they were filming.)