Watch a first look at The Island with Bear Grylls - but when does it start?

THE ISLAND SERIES 4 2017 start

Here's a very first look at The Island with Bear Grylls 2017, which starts this weekend on Channel 4.

Series 4 of The Island with Bear Grylls begins on Sunday night on Channel 4 at 9PM.

The new series is then back again on Monday night before continuing on Mondays at 9PM for the rest of its run.

And this year, there's a brand new twist.

Oldies will be pit against youngsters in the new series of The Island with Bear Grylls.

The Channel 4 show maroons participants on a remote island to test whether they have the skills they need to survive.

And its upcoming fourth season will apparently feature an experimental new twist: an age divide.

This year's castaways will be split in to two groups - the young and the old.

The show will examine which ages cope best with the tough conditions, although the rival sides are likely to merge later in the series.

The Island first hit our screens in 2014, with fourteen men left to fend for themselves without modern luxuries.

Accusations of sexism led the second series to feature two different islands - one with men and one with women.

Last year's run was the first to feature both genders together. The males and females initially arrived on opposite sides of the same island, without knowing the other group was there.

Ahead of the start date for the new series of The Island with Bear Grylls, Channel 4 has released a teaser trailer.

The 40 second clip shows some of what's to come from the season 4, including rows and accidents.

The Island with Bear Grylls begins Sunday, April 23 at 9PM on Channel 4.

More on: The Island 2019
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