When word gets out about a lost diamond on the floor (and a nice reward for its return), each staff member plots to find it first and ... and the rest of the Grace Brothers staff. Are You Being Served ...

A dinner is scheduled to mark Mr. Grainger's 65th birthday. After 37 years with Grace Bros., will he be forced to accept the infamous cuckoo-clock of retirement as his gift? It may be the coldest day ...