Once regenerated , Jack is sealed in cement by agent Johnson ( Liz May Brice ) until Ianto rescues him with a forklift truck .
In part two , Ianto and Gwen survive a Hub explosion that obliterates Jack .
Once regenerated , Jack is sealed in cement by agent Johnson ( Liz May Brice ) until Ianto rescues Jack with a forklift truck .
In part two , Ianto and Gwen survive a Hub explosion that obliterates Jack .