 He also sees a shadow moving in the cave, an impossibility due to the extremely high temperatures.Firewalker's camera is then destroyed, ending the transmission.Pierce goes to Fox Mulder (David Duchovny) and Dana Scully (Gillian Anderson), showing them a TV interview of the project's leader, Daniel Trepkos (Bradley Whitford); Pierce was with the project until he and Trepkos had a falling-out.