The final four teams are on their way to the finish line on season 26 of The Amazing Race, and by the end of the leg, one will be $1 million richer.

Will Hayley & Blair or Mike & Rochelle Win $1 Million?

Of course, once the remaining four teams--soul dating couple Rochelle and Mike and blind daters Laura and Tyler, Jenny and Jelani and Hayley and Blair--arrive in Dallas for the last leg, they will still need to complete quite a few tasks on their journey to be the first across the finish line--including one roadblock which will force one member of the team to rappel down a building and try to spot their next clue in the distance.

In a sneak peek clip of the finale, the challenge proves to possibly bring out a portion of the bickering that has made Hayley and Blair one of the most-talked about teams of the season, as she looks for the clue, only to have Blair shout up at her and upset her.

Teams Use 'Strength' & 'Stamina' In Race For Final Leg

"You know where to look right?" he shouts up at her.

"Oh my God, if he's yelling at me, thinking I'm not doing this right, I'm going to murder him," she says.

It is unclear how the finale will play out, with all four teams possessing some strengths (each one has at least one other prior win throughout the race). It appears in the clip that no other teams have yet caught up with Team #RXforLove, who left Peru in first place, though it is not certain if they are still in first I the clip.

The Amazing Race season 26 finale airs May 15 at 8 p.m. on CBS.

Tags: The Amazing Race CBS Reality TV