Collects Iron Fist (1975) #3-15 And Marvel Team-Up (1972) #63-64.

Joined by ladies of action Misty Knight and Colleen Wing, Iron Fist has his skill in both mind and body tested by radioactive horrors, martial-arts masters, New York's kung-fu kingpin and even his closest confidantes. Plus: an assault on Avengers Mansion; the first appearance of Sabretooth; an early guest-appearance by the All-New, All-Different X-Men; and the final showdown with the Steel Serpent.