Power Man and Iron Fist Epic Collection #4

Plot

Is this the end of a beautiful friendship? The original POWER MAN AND IRON FIST series races to its conclusion as the duo faces a rematch with old foes Nightshade, Discus, Stiletto, the Eel and Man Mountain Marko. But who is Captain Hero? And what does this powerhouse want from Luke Cage? Iron Fist shares a team-up with the Falcon at Project PEGASUS — where there's a murderer on the loose! And Cage is recruited to take on the terrorist group named Control-7! But why is Danny Rand suddenly old and dying? And if he can somehow return to K'un-Lun to be healed, what will be the terrible price? As the Dragon King's brother attacks and Iron Fist sees red, tragedy will tear apart the Heroes for Hire!

Collecting POWER MAN AND IRON FIST (1978) #108-125.