以下为督察班克斯第四季看点：

What Will Survive　　DCI Banks struggles to cope with the sudden death of his mother, as he investigates the murder of a young Estonian woman and the disappearance of her drug-dependent sister.　　Buried　　Banks must navigate difficult emotional territory when the body of an eminent lawyer is washed up in an underground river and he suspects a member of her grieving family is responsib...