CBS | 9:00 pm

Though Grace (Jennifer Finnigan) has tried to run interference for him, the Pentagon is on the verge of ending Darius’ (Santiago Cabrera) plan to stop the threat from the asteroid in the new episode "Truth or Darius." Grace proceeds to make other decisions in which she places personal concerns above professional duty. Liam and Jillian (Charlie Rowe, Jacqueline Byers) have an unexpected reunion. Dennis Boutsikaris continues his guest role.