Season 24 of CBS's hit reality series The Amazing Race: All-Stars follows teams of two competitors, who had appeared on the series in previous seasons, getting a chance to once again take on the difficult challenge of racing across the globe.
In this clip from the upcoming episode Down and Dirty, the contestants find themselves in the very crowded streets of Sri Lanka, where the noise and traffic makes their tasks much harder to complete.
WATCH: Phil Keoghan Teases Amazing Race All-Stars Drama
While some contestants find themselves exhausted beyond measure, others seem to thrive in the madness, such as the 58-year-old David O'Leary, whose youthful energy, vitality and enthusiasm blows the other contestants away, but also stirs some ire.
The Amazing Race: All-Stars episode Down and Dirty airs Sunday, March 30 at 8 p.m. on CBS.