After a several week long break for no apparent reason, Flash returns with “Trajectory.” Before I get to the review, I’m going to take a moment to point out something that’s really getting annoying to me about a lot of current hero shows and movies. This is a mini-geek rant, so if you’re not interested, feel free to move on. Secret identities seem to be falling out of favor with most heroes, something I really don’t like, but that’s another issue. The ones that still have a secret generally have reasons for it. But over and over, we keep seeing so-called “masked” heroes in public with their masks off. If the hero wants to keep their secret, keep the mask on. If the actor playing them is so desperate to get their face on screen at all times, don’t sign on to play a hero who wears a mask. It’s a stupid trend no matter how you look at it, and it comes up several times this week. Ok, rant over. On to the review.