On Grineer and Corpus rescue missions, the objective is to free the hostage without alerting a group of patrolling Wardens. The hostage is in a room patrolled with Wardens with multiple prison cells, half of which are locked, and the rest hackable; the hostage will be in one of the hackable cells. Alerting a Warden will cause him or her to activate an alarm sequence, this action will call in significant numbers of enemy reinforcements and start the execution timer; failing to rescue the target within the time limit will kill the hostage and fail the mission. Upon reaching 15 seconds left on the timer, the hostage will bang on the door of the cell they are locked behind, followed by them calling out to the Tenno, alerting them of his/her location.