S1, E3: The team investigates when Tom Laird's wife Irene vanishes suddenly, and DS MJ Croft comes to blows with her superior, DCI Ford, when she suspects Tom of murder. MJ is not convinced when new evidence reveals another side to Irene. Meanwhile, Amy is keen to find Martin Cadzo, who disappeared after testifying against his father in a fraud trial, and whose uncle has left him a large inheritance.