Channel Patrol

A giant car carrier, the Heogh Osaka, is grounded on a sandbank in the Solent. Rescuing the 25 souls on board at night is a challenge for the RNLI volunteers from Calshot. It is also a testing time for the tug crews and Southampton harbour patrol, who work day and night to keep the Osaka in position and this busy shipping route open for business and who play a key role in finally bringing the Osaka safely back into port.

A maintenance crew gets to work deep under the Channel, a team of teenagers braves the ultimate open water challenge, and a helicopter gets a little too close for comfort.

The Royal Navy have to combat rough seas, a high-speed ferry pilot battles traffic in the Solent, a sickly seal is washed up on a Cornish beach, and £700,000 worth of cargo needs to be handled with care.

The Royal Navy bomb squad unearth a deadly relic that has been sitting on a mantelpiece for 30 years, a cargo ship resupplies the tiny island of Alderney and a young entrepreneur carefully navigates his life savings through the commercial shipping lanes.

The Royal Navy Air Squadron receive a distress call about trapped teenagers, a new ferry captain takes to the helm as the weather closes in and in Southampton Dock, engineers race to fix the port's giant forklifts as a backlog of customers mounts up.

The RNLI come to the rescue of some stranded mariners, the coldest race in the yachting calendar gets under way and pets get caught up in the half-term rush across the Channel.

A giant cargo ship braves the treacherous shipping lanes, a local oyster farmer finds treasures in the deep and the bomb squad unearth a blast from the past.

A tiny tug boat steers a giant tanker safely into port, young British sailors attempt a speed record to France, and a boyfriend-and-girlfriend team try to muscle in on the whelk-fishing market.

A new coastal defence is running out of rocks as nearly £1 million worth of granite is stuck out at sea, a young naval officer is handed control of an aircraft to swoop down on ships in the Channel, and grub's up on the way to France, but there's only one thing anyone wants to eat.

A maintenance crew have to inch their way through a seaway obstacle course, a group of university students get a taste of navy life and a team of builders take on a challenging restoration two miles out at sea.