A dangerous mortal (guest star Alex McArthur) uses a crystal sword to suck powers out of people and targets Prue (Shannen Doherty) as his next victim. To help combat him, Prue casts a spell to strengthen her powers, only it ends up cloning her twice. Using his sister (guest star Shannon Sturges) as bait, Gabriel methodically attempts to trap Prue. Meanwhile, Piper (Holly Marie Combs) contends with the dreaded annual inventory at the Quake.