Amber Templemore-Finlayson and Katie Ellwood, collectively known as Bert and Bertie, respectively, are British film and television directors. They are best-known for directing the film Troop Zero.
Many years after "Portal," Chell reawakens at Aperture Science and tries to stop GLADoS once again with the help of Wheatley, who has his own plans for the historical facility.
