Professor Thilaganathan provides pioneering care to Ann-Marie's twins, who are at risk of dying. He also helps Becky's unborn baby, who has a rare lung tumor, and he closely monitors Randika's pregnancy.

Susie's triplets may have a life-threatening condition that urgently needs treatment. The surgeons also help a baby with fluid on the brain and a baby with a foot tangled in the lining of the womb.

The surgeons attempt a procedure that has never been done before in the UK in order to save Zoe's baby. Meanwhile, 22-year-old Latifah is carrying triplets while also facing motherhood and some tough decisions alone.