Star Princess

(Noon GMT) -- The fourth series of popular TV show "The Cruise" returns next month and follows the crew members and passengers aboard Star Princess as the ship sails in Alaska.

The three-part series will track the course of the 3,100-passenger ship as it calls on some of the region's most popular destinations, including Juneau, Skagway and Ketchikan, where passengers experience glaciers, dolphins, seals, whales and dog sled puppies.

Several new crew members will appear, including Captain Tuvo, who takes the helm and acts as an unofficial tour guide by announcing points of interest from the bridge. Timothy from the shore excursions desk, a familiar face from the previous series, will also feature.

"The Cruise" will again be narrated by Hugh Bonneville, the actor who plays Robert Crawley in "Downton Abbey".

Tony Roberts, Princess Cruises' vice president U.K. and Europe, said: "The next series is genuinely jaw-dropping and we can't wait for viewers to get an insight into what Alaska has to offer. Princess has almost 50 years' experience sailing to the region and takes more people there than any other cruise line, with seven ships visiting this year alone."

The first weekly episode airs at 8:30 p.m. on Thursday, March 1, on ITV, and a further series of "The Cruise" set in the Caribbean will air later this year.

--By Jeannine Williamson, Cruise Critic contributor