Frank's secret lands him in hospital; Betty makes an upsetting discovery; and the Simpkins family comes together in worry.

A surprise pregnancy turns Alice's world on its head; Betty makes a pact; and Isla struggles to cope with life-changing news.

Aaron struggles to stay silent; Betty discovers a lifelong secret; and Frank does what's "best for the family".

Isla falls apart, again; Betty faces the fallout of Frank's actions; and Frank makes the ultimate sacrifice.

Alice and Tommy celebrate new life; Frank and Betty make a pact; and the Simpkins family says goodbye.

Alice struggles to parent through grief; Aaron and Isla take responsibility; and the Simpkins family learns to live without.