"The Amazing Race" races to season finale

Roller Derby moms Mona, left, and Beth must make their way by train to Southern Scotland where they will board a ferry and cross the Irish Sea to Belfast, Ireland, on the season finale of "The Amazing Race," airing May 5, 2013.

After more than 30,000 miles, five continents and nine countries, it's almost time for "The Amazing Race" teams to race to the finish line.

The 22nd season of the CBS competition series wraps up this Sunday with a two-hour finale beginning at 8 p.m. ET.

The four remaining teams -- hockey-player brothers Bates and Anthony, country singers Caroline and Jennifer, newlyweds Max and Katie and roller derby moms Beth and Mona -- will travel first from Edinburgh, Scotland, to Belfast, Northern Ireland, where they'll go "bog snorkeling" and one team faces elimination.

Then, with three teams left, it's a sprint for first place and the $1 million prize when the race ends at the finish line in Washington, DC.

Tell us: Who do you think will win "The Amazing Race"?