Metamorphosis
S3, E16: The Invid queen allows two of her children to become human and sends them to Earth to find their rogue spy, Marlene; one of the agents has an unexpectedly emotional encounter with Lancer.

S3, E16: The Invid queen allows two of her children to become human and sends them to Earth to find their rogue spy, Marlene; one of the agents has an unexpectedly emotional encounter with Lancer.