Door Number Three

After months apart, Tom finally reunites with his family and the 2nd Mass. But the joyous reunion is cut short as Lexi undergoes a health crisis tied to her hybrid DNA. The crisis pits family members against one another as they fight over how to deal with Lexi's illness. Anne goes to great lengths to save her daughter. Treva Etienne, Jessy Schram and Robert Sean Leonard guest-star.

Season 4 | Episode 6
Airs July 27 10/9C
AVAILABLE July 28
Cast

Noah Wyle

as Tom Mason

Moon Bloodgood

as Anne Glass

Will Patton

as Captain Weaver

Drew Roy

as Hal Mason

Connor Jessup

as Ben Mason

Maxim Knight

as Matt Mason

Colin Cunningham

as John Pope

Mpho Koaho

as Anthony

Seychelle Gabriel

as Lourdes

Sarah Sanguin Carter

as Margaret