Witches can't run away from their legacy, at least not the Halliwell sisters -- Prue (Shannen Doherty), Piper (Holly Marie Combs) and Phoebe (Alyssa Milano).
Paige brings a baby-robot and gives it to Piper and Leo to see if they can conciliate having a baby of their own and vanquishing demons.
S4E7 42 min