During WWII, the highly successful crew of a gunboat seem invincible! The boat is extremely powerful; the crew, masterful and they record hit after hit on the enemy, without casualty, themselves.
However, all good (and bad) things eventually come to an end and, with the end of the war, came the end of the good times (this is not to say everyone at war had or has a "good time").
As happened with so many ex-service personnel, who fought for their country, the heroes returned to "Civvy Street" only to find they had difficulties. During a chance encounter in a bar, some of the old comrades meet and yarn over the past. A suggestion is made that they might go into business, albeit more peaceable this time.
As it happens, the gunboat they had so many adventures in, had been left derelect for a number of years, but was up for sale. They buy it and completely refurbish it, remembering the "good old days" whilst doing so. After some wrangling, the crew is set and ready to undertake their business. However, before too long, the business becomes somewhat more "shady" than some of them had anticipated; smuggling alcohol. However, despite a "run in" with Customs, they continue.
Things continue with intrigue, dodgy deals and further visits from Customs. However, there isn't enough money in smuggling a few bottles of booze every so often. It is decided to move into a slightly different cargo - human traffic.
A murder, some narrow escapes and gradually, the boat mysteriously suffers engine trouble; almost as though it has the conscience that its owners ought to have. It isn't a happy ending....
Watch out for some first-class performances by Richard Attenborough, Bill Owen and Bernard Lee (who plays the Customs officer). His parting words, to describe his ruthless killer: "Lah dee dah" (referring to the man's upper-class accent). BRILLIANT!!
Many excellent action shots at sea, lots of white water crashing around and a very atmospheric film!