It is all to play for at the Grenada National Stadium as West Indies and England go in search of a Test series-clinching victory.
The Windies have dug in for draws under pressure on the final day in Antigua and Barbados.
England are bottom of the World Test Championship table, with the Windies directly above them as both sides strive to transform their fortunes in the longest format.
The tourists look set to be without seamer Ollie Robinson once again as he continues to struggle with fitness issues.
England have not won a Test series in the Caribbean for 18 years, but have undoubtedly made strides during this tour as they battle for the Richards-Botham Trophy.
Yet they are still without a win in eight matches in the longest format and have been unable to show the potency to dismiss West Indies twice when in a great position to take the lead in this series.
Kraigg Brathwaite was the Windies' hero at Kensington Oval, showing incredible application and skill in both innings.
The skipper batted for 710 minutes for his 160 in the first innings and dug in for an unbeaten 56 on the last day in Bridgetown to keep the series level.
England must produce some heat on the Spice Island if they are to head home with a 1-0 victory.
Brathwaite and Root leading by example
The Windies were indebted to opener Brathwaite in Barbados as he dropped the anchor in both innings on his home ground.
By facing 673 balls combined in his two obdurate knocks, the skipper set a record for the most deliveries faced by a West Indies batter in a single Test. Brathwaite has the more runs than anyone else in this series, scoring 304 at an average of 101.33.
Prolific England captain Joe Root has also been magnificent, racking up 284 - including two centuries - at an average of 71.
Overton set to return, unchanged squad for Windies
Craig Overton was ruled out of the second Test due to illness, but is set to get another opportunity with Matt Fisher expected to step aside.
Saqib Mahmood should also be unleashed on the Windies again after an excellent opening spell on the final day in Barbados, with spinner Matt Parkinson facing the prospect of missing out again and Robinson not fit.
West Indies named an unchanged squad after frustrating the tourists once again on the final day.