 Sienna begins a relationship with Warren Fox (Jamie Lomas) and they plan to have Maxine arrested for Patrick's murder; but upon discovering Nico was responsible, Sienna tries to protect her by falsely confessing.After Warren and Maxine discover Nico's crimes, they force Sienna to tell the truth, and she is released from prison.Police chase Nico and she is caught in the blaze at the Halloween Spooktacular; Sienna pleads with Warren to save Nico, but he instead chooses to save Sienna's life and let Nico die.