Ultimately , the rest of Ianto 's team is forced to kill Lisa .
Ianto is forced into confrontation with team leader Captain Jack Harkness ( John Barrowman ) , who is later able to revive Ianto with a kiss when Lisa knocks him unconscious .
The rest of Ianto 's team is forced to kill Lisa .
Ianto is forced into confrontation with team leader Captain Jack Harkness ( John Barrowman ) , who is later able to revive Ianto with a kiss when Lisa knocks him unconscious .