The Avengers · S6, E29
Requiem
Tara finds herself attending a Requiem service for Mother, when Steed inaugurates a one-man witness protection program for a key witness against Murder International: taking the witness to Fort Steed, a hiding place supposedly known only to him. But agents bent on murdering the witness booby-trap Steed's apartment. When the bomb explodes, Tara is severely injured - and Mother is killed. Now Tara must find Steed in time to warn him.