The Boy Who Knew Her Secret: Part 1 - S3-E20
Continuity mistake: During the credits, Sklip is riding his bike towards a boulder where a couple strolls. When he arrives at the boulder, the couple is now 50 metres behind, walking towards it again.
Revealing mistake: When George hangs upside down on the building ledge, the safety cable holding him is visible.
The Girl with a Gift for Disaster - S3-E19
Revealing mistake: When the gas truck crashes against the blue car, it already has a dent on the door. After the crash, the dent disappears and the door gets fixed.
The Girl with a Gift for Disaster - S3-E19
Visible crew/equipment: Set lights are reflected on the bearded spy's glasses while inside the undercover plumbing van.
Revealing mistake: When old Mary Jane Thrip kicks the bad guys' ass and runs away, her younger stunt's face is visible.
Revealing mistake: Visible ramp to allow Wonder Woman to jump over the van.
Continuity mistake: When Wonder Woman chases George on a motorbike there's a broken white line on the road. In the close-up, it's a double yellow line or a broken yellow line.
Continuity mistake: When Wonder Woman runs towards the parked motorbike, its position changes between shots; check the front wheel for example.
Continuity mistake: When George arrives with his motorbike, there's no one around. When he steps off, a woman pops out of nowhere. (00:00:07)
Continuity mistake: When George rides his motorbike, his stunt is slim, as opposed to George's fat body complexion.
The Richest Man in the World - S3-E17
Continuity mistake: Henshaw tells Barney he owes him 50 bucks, both arms lowered. A shot later, his left arm is raised and he is touching his nape. (00:10:09)
The Richest Man in the World - S3-E17
Revealing mistake: When Wonder Woman pushes the gunman off the beam, he falls on a very evident crash mat covered with a black canvas.
The Richest Man in the World - S3-E17
Continuity mistake: When Henshaw's car crashes against the crates, there's one which falls on top of the boot. The next time we see it, it's on the ground. If it fell down in between shots, a thump had to be heard.
The Richest Man in the World - S3-E17
Continuity mistake: When the car is about to crash against the vegetable stand, the windows are rolled down. During the crash, they're up. When the car stops, they're down again.
The Richest Man in the World - S3-E17
Revealing mistake: During the chase, when the car overtakes a red car, Henshaw's stunt is noticeable because of his bulky wig.
The Richest Man in the World - S3-E17
Revealing mistake: During the car chase scene, skid marks from previous shots are everywhere. (00:32:13)
The Richest Man in the World - S3-E17
Revealing mistake: When Henshaw and Barney's chase starts, there's a shot inside the car where it's painfully obvious that the car is not moving at all. Check how the reflections on the hood are perfectly still, for example. (00:32:08)
The Richest Man in the World - S3-E17
Continuity mistake: The way Barney holds the keys changes between instant cuts.
The Richest Man in the World - S3-E17
Revealing mistake: When Wonder Woman is chasing the guy at the factory, their stunt doubles are noticeable.
The Richest Man in the World - S3-E17
Other mistake: When Wonder Woman chases the guy in the factory, all of the scenes of her jumping plus the last scene of the guy running away and her jumping on top of him are reused from S2E17.
Answer: Yes, on the first episode of season 2, she is shown on the island, when another plane crash lands, she says, "They sound different from WW II". Later in the same episode a woman gathers background information on Wonder Woman. The woman says, "From 1942 to 1945, she helped the Allies win the war."