The Pretender
Episode 2x08
An ex-Nazi surgeon, who used Sydney an his twin brother Jacob as test subjects, shows up at the Centre. Sydney gets mand and would like to kill him, so Jarod helps Miss Parker and tells her how to help their friend. Syd realizes he became like the monster he hates when he had to grow Jarod. Later, the pretender calls him and makes him understand he's not a monster at all, indeed he still loves him as his "family".
One of the most touching moments in the show, probably one of my fave episodes...
Sorry for the low quality of the video, but that's all I could do.
I hope you enjoy it!