Season three also sees the introduction of the demon Ruby, who tries to gain Sam's trust by helping the brothers in fixing The Colt, saving them numerous times, and telling Sam she can save Dean from Hell, even though in reality she cannot. Ruby also reveals that because Sam refuses to lead the demon army, another demon named Lilith has filled the power vacuum and is leading the army while carrying intentions to kill Sam; she is also revealed to hold Dean's contract for his soul.