The Quest (7 p.m., Ch. 4): The contestants prepare for (fake) war.
Project Runway (7 p.m., Lifetime): The contestants have to create a look for host Heidi Klum to wear at an awards show.
Big Brother (8 p.m., CBS/Ch. 2): Another contestant is eliminated.
Rookie Blue (8 p.m., ABC/Ch. 4): A bomb explodes in a downtown parking garage. (Two-hour season finale)
Working the Engels (8:30 p.m., NBC/Ch. 5): Ceil learns that the Engels are known as the neighborhood's "crazy family."
Defiance (9 and 10 p.m., Syfy): Amanda and Pottinger are trapped in a mine collapse; a shocking murder rocks Defiance.
Rectify (10 p.m., Sundance): Daniel rejects Jon Stern's advice.
Rush (10 p.m., USA): Rush treats a poliltician on the campaign trail.
The Honorable Woman (11 p.m., Sundance): Hayden-Hoyle recalls his climb up the ranks of MI6.
Satisfaction (11 p.m., USA): Neil considers an unusual proposition.