Bates, Swan and Blaisdel bring their Terra-Man saga to a rousing conclusion in Action 470 (April 1977).
With Superman defeated so publicly, it’s no surprise that other heroes have been following this. The Flash is the first to arrive, appropriately, but appears to fare no better against the western-themed villain.
Green Lantern shows up as well, and so does a familiar-looking alien craft, which shoots down the Lantern.
The ship belongs to the brother of the alien who raised Terra-Man, and who was killed by him. But by then, we have also discovered that the person who appears to be Terra-Man is really Superman. This neatly decoys the alien seeking vengeance to attack Superman.
Things take a surprising twist when Superman does show up, along with the Terra-Man that is really Superman. Superman and Terra-Man fight the alien, but the real Terra-Man sheds his disguise to join in and figure out what is happening.
The new Superman is really Gregory Reed, with his powers being faked by Green Lantern and the Flash. Not being the real Superman, he does not have his weaknesses. There is enough deception going on that both Terra-Man and his alien pursuer are defeatable.