So I was taking a wiki walk on the ppc wikia, and I learned that Jack Harkness(Dr.Who/ Torchwood) was immune to the perception filters that agents use and knows of the ppc's existence. Can anyone link me to any missions that have him helping ppc agents, learning of the ppc, or showing awareness to whats going on? I've been searching for a while and haven't found anything yet. Can anyone help me please? Thanks.