Despite the fact that 'Big Love' follows a group of polygamists, the unconventional family still struggles with the same problems as the rest of us.
Case in point: Lois Henrickson's battle with dementia.
Bill sat down with his mother and explained her problem during last week's episode. In TV Squad's exclusive first look at Sunday's episode, Bill calls in an unlikely reinforcement: his father.
Frank (sporting a sweet 'stache) finds it hard to believe that his former wife needs his help. "Lois needs care?" he asks Bill. "Lois is the last person on the planet that needs care. The woman could survive a nuclear explosion. Just Lois and the cockroaches."
Watch the clip after the jump.