 In "Let it Bleed", Castiel is enraged to learn that Lisa and Ben Braeden have been kidnapped by Crowley and tries to get him to reveal where they are to no avail.Castiel saves Dean from a demon and tries and fails to convince him to back off.Later, after Lisa is mortally wounded by a demon possessing her in an attempt to force Dean not to exorcise her, Castiel arrives at the hospital and without being asked, heals her wounds and at Dean's request, erases all of her and her son Ben's memories of Dean.