I came up with a similar idea over on the Avengers Messageboard and it was marvel counterparts to Smallville's Justice League from the episode "Justice"

My idea was about Peter Parker after the bite as his powers slowly come in one at a time, much like in Smallville.
The first season would be about Peter discovering his powers and would end with Uncle Ben getting shot, due to a crook Peter could of stopped but didn't earlier in the series, we wouldn't find out if Ben survived or not until the next season premier. You might think the answer would be obvious, but me being me.... I might keep Uncle Ben around, I'll get around to writing it one day hopefully, so if I do... I'll let you guys know.

Below are the characters who would appear in the "justice" style episode which I'd call "Assemble"

Captain America - Steven Rogers III (Grandson of the original)
Vison (A human looking android Peter helps escape from Oscorp)
Hawkeye - Clint Barton (A former pick pocket/hustler who Pete helped go straight)
Webhead - Peter Parker (he didn't get to pick his code name, smallville reference)
Quicksilver - Peitro Maximoff (A mutant speedster who was searching for his sister whilst running from their father)

Also I'd have Gwen Stacy as their Chloe Sullivan/"Watchtower" character.

(I previously had Iron Man in the second slot, but I think Vision fits better)