It's a Mad, Mad, Mad War - S3.E3

Left alone on the 73, in New Caledonia, while McHale attends a staff meeting, and the Crew are on an unauthorized liberty, Parker receives the order from Binghamton to pick up the base payroll. After he's robbed of the $62,000, McHale and the guys frantically try to locate the cash, before Binghamton can accuse them of the theft.