Fringe Season 3 Episode 5 (Fringe s03e05) with title “Amber 31422″ aired on Thursday, November 4th 2010 at 09:00 pm via FOX Network.
Here is summary for Fringe Season 3 Episode 5 :

The alternate universe Fringe Division investigates a shocking breach of security when a twin frees his brother from a quarantined Amber area. As the team sets out to crack this sophisticated case, Walternate experiments over there more with Olivia as she reenters the tank.