Fallen Angels is a team of teen heroes who broke off of the New Mutants starting in Fallen Angels #1 (December 30, 1986).
The eponymous team is an eclectic group of young runaways with super powers who have been brought together for a secret reason. The first few issues deal with gathering all the team members together, and the few issues after that detail the death of one team member and the relations between the other members. The whole series builds up to an adventure on another planet where the local population have evolved to the point that they can no longer evolve. The team consisted primarily of mutants, and therefore they had been lured away from Earth to become scientific test subjects. Two of the main protagonists must admit that they are also mutants before they can save their new friends.