The Avengers #3 (1964)

In The Avengers #3, we see the Hulk and Namor The Sub-Mariner teaming up against our beloved Avengers team. The story begins with the remaining Avengers looking for the Hulk to bring him back to the team. Iron Man contacts other heroes, but they are all too busy with their own affairs. Thor suggests reaching out to Rick Jones, who eventually finds the Hulk fishing for a car in a nearby lake and brings him to Bruce Banner's hidden laboratory.

Unfortunately, the radiation dosage is too weak, and the Hulk unexpectedly transforms back into Banner, causing chaos. The Hulk escapes and ends up fighting Iron Man, Giant Man, the Wasp, and Thor. The Hulk even throws a caboose at Iron Man and tangles Thor in a steel cable. But he eventually teams up with Namor, and they form an alliance against the Avengers.

The Avengers take a jet bathyscaphe to Gibraltar where their antagonists await them in a cave used by the British in World War II. A battle ensues, and although the Hulk changes back to Bruce Banner and has to run away to avoid revealing his secret identity, Namor refuses to surrender. In the end, a trickle of water from the cavern wall restores enough of Namor's strength to allow him to break free and escape.

Overall, this classic story shows us the unpredictable nature of the Hulk while giving us a glimpse into the powerful abilities of Namor The Sub-Mariner. If you're looking to add this comic to your collection or want to sell it, Comics Into Cash is your go-to source for knowledge and fair pricing.