"First Steps," written by Kevin Hopps, directed by Kevin Altieri:
Hey, an actor in-joke. Sandman, played by John DiMaggio, is repeatedly going on about his "big score." As in Futurama: Bender's Big Score, a reference to DiMaggio playing Bender.
And more new characters getting added, including Sha Shan. In the comics, she was a woman Flash met in the Army in Vietnam, which of course has been retconned or ignored thanks to the comic-book sliding present. There's also the drama teacher St. John Deveraux, a familiar name, though I can't place it. Probably a supervillain.
Interesting the way they riff on Sandman's reform from the comics. At first, it seems like it's just a ploy when he pretends to listen to Spidey, but then he's nice to that little girl on the beach. So it was hard to tell where they might be going. It builds up to him still being a thief but one with morals, using his powers to save lives -- while also making his getaway by faking his death.
The explosion thing was implausible, though; given that the tanker was already ruptured open, I don't think the burning oil could've built up enough pressure for an explosion and would've just burned and given off lots of toxic black smoke.
The birthday-party videos were fun moments, with surprisingly cartoony animation, not the sort of thing I expect to see from Altieri. But it was good cartoony animation.
And nice reveal at the end about Pete's Brock/Venom sightings. Although I'm disappointed to see Venom back again so soon. That character is more effective the less he's used.