As the suave doctor Robert renews his acquaintance with childhood sweetheart Megan, older brother Basil ingratiates himself with villagers eager to exchange their house deeds as a deposit on a swanky house in his new development. Aled and Daf clumsily conjure an ambitious plan to end Basil's ambitions. Meanwhile, Robert surprises Prem by offering him a central role as part of his new medical centre team. But Prem has a more immediate problem when late in the day, a forlorn Megan calls at the surgery with some unexpected news.