Albus Severus Potter Timeline & Summary

It's Albus' first day at Hogwarts.
He hates it.
But he meets Scorpius Malfoy and they become best buds.
After a fight with his dad, Harry Potter, Albus decides to go back in time and fix one of Harry's mistakes.
That mistake: letting Cedric Diggory die.
Albus accidentally creates a timeline where Hermione and Ron didn't get married.
Oh, and his dad still acts like he hates him. Oops.
He and Scorpius try to change time again, and Albus disappears.
Oops again. Albus is disappeared for a while.
He returns in the original timeline, where he thinks his dad hates him. Three acts of the play, and he has nothing to show for it.
Before Scorpius can destroy the Time-Turner, Delphi Diggory takes them back to the past again.
She's actually Voldemort's daughter, and she wants her dad back.
Albus and Scorpius send Harry a message in the present.
Harry returns in time to fight Delphi, and Albus helps block a killing curse.
After Delphi is captured, everyone returns to the present.
Harry promises to be a better father. Thanks, dad.