That's the setup of The Losers with much of the back story dispensed with in the first slam-bang 15 minutes of the film. The style is hardcore comic bookish (which makes sense as it's based on one) - right down to the occasional live action frame of the characters/scene being replaced by a drawn representation. The look of the film is great, and I generally enjoyed the interactions within the team. Always nice to see Stringer Bell (Idris Elba) in action, even when he's playing someone else. Though the scene stealer of the group is Chris Evans as the communications / tech guy not afraid to wear the pink/purple jersey of his niece's soccer team to dangerous meets (where everyone else is of course in shades of black). He's a goofus but very entertaining to watch on screen.
I wasn't expecting that much from The Losers and given that I wasn't disappointed. There are really only two significant action set pieces that demonstrate the sort of clever movie world military capers that I tend to enjoy. With enough smaller fighting and/or gun play sequences to keep things from being boring. Everything is technically well done even though little of it got my blood truly pumping.
The villains of the piece are (I presume purposefully) over the top caricatures of bad government folks as they go in search of snukes (yes, I spelled that right) the perfect weapon of mass destruction for eco-concerned terrorists.
All in all, I feel I can definitely recommend as a rental on a rainy afternoon for the mix of slick production, decent action and superficially enjoyable characters/dialog. Not to mention plenty of gratuitous ogling of Ms. Saldana from every angle (the most impressive is the shot of her posterior tracking on a shard of broken mirror falling from the ceiling). Whether it's worth $10 in a theater I'll leave to you. Suppose it depends on how badly you're looking forward to The A-Team. :-)