A Cross to Bear - S1.E20

This episode is set around Easter time. Liz's parents come up for a surprise visit to the country, only to reveal that Liz's father has cancer. Meanwhile, in the city, Isobel goes to visit Katy on Good Friday. Katy was going to go for a drive with Tom, but when Isobel turns up for the surprise visit their plans are ruined. Pip and Cam are worried about their mother and Greg Steele, and try to jepoardize their relationship before coming to a conclusion that it's not the right thing to do.