Pilot episode. Sarah, Cameron & John are in the bank vault & assemble the time travel device. Sarah blasts the "evil" terminator just as Cameron activates the time travel field. When Sarah, Cameron & John time travel and appear in the future, they arrive naked, which is consistent with all the previous Terminator statements that "only living tissue" can be transported. But the head of the evil terminator also gets transported through, even though it's been completely stripped of it's living tissue covering and is nothing more than a hunk of steel.