Time and Time Again - S4.E10

When going to an Ultronian Court Meeting because of Arnie supposedly getting Mrs Raven pregnant, George and Arnie run into a time field and get launched 7 years into the future. Things have changed, so, they go back to the year 2003.

George realises he can use this to his advantage, and can change history to make things better... However, things don't go to plan when he is trying to stop Janet from breaking her arm, and he turns her bald. Turns out, she had cronic scalp problems, so when she broke her arm, the doctors fixed her hair.

Then, George goes back again and fixes the problem. However, when trying to sort it out fully and properly, he messes things up, saving her from breaking her arm and leaving a note for her to go to a doctor about her scalp. However, she and the doctor fall in love, and in 2003, she is married with Piers and they have 10 children! No one knows who Arnie or George are, Mrs Raven is nice, and Tyler actually has a girlfriend!

So, in the end, it turns out Piers