So the two people claiming to be Clark’s parents are just planetary criminals from another world who can shape shift. They capture Clark, Lana and Andy and then kill Andy with Lana finding out Clark’s secret. She reveals her undying love but they are rescued by a being from the same planet as the crooks and help Clark and Lana out of their ordeal. The being sends a message back in time to his past self and warns of the danger. The crooks never captured Clark and Lana and Andy never died and Clark’s secret is protected.
Unfortunately Clark from this ordeal is erased as so are Lana and dead Andy. Everything is like it was without the aliens and Clark doesn’t know Krypton exploded and his parents are dead. One day he will and he returns to his life and finishes birthday celebrations with Andy and Lana wishing the big guy a happy birthday over the phone.