Portal 2: Infinity will be a fully voiced single player campaign, which takes place a few years after the end of portal 1. When the few escaping employees created Aperture Science West, a facility dedicated to the glory of what aperture science once was, The law to keep AI control of the facility to a minimum had been kept very strict. But when the Portal Transit, the system that links together the facility, is hacked while you're testing; it's up to you to find out what's going on.
So generic, yet so interesting.
Hmmm, faith plate to wall to mid air button press to ground, or it activates another faith plate up ahead.