Giant-Size Super-Villain Team-Up #1 Mar 1975
"Encounter at Land's End!"
Dr. Doom's body crashes to Earth, his unconscious body crashing in the ocean.
He is found by the Sub-Mariner, who takes the Latverian monarch into his submarine
and uses it's equipment to revive him.
At first Dr. Doom considers Namor an enemy, however the Atlantean monarch convinces Doom not to fight
and they begin to ponder over the possibility of having an alliance together.
Script by Roy Thomas.
Pencils by John Buscema.
Inks by Joe Sinnott.