The whitewater kayaker who defied limits and dropped down a 100-foot waterfall: Nouria Newman S3:E12

The free solo climber who turned grief into climbing fuel to honour a promise: Brette Harrington S3:E11

The swimmer who battled through piranha waters for 66 days to conquer the Amazon River: Martin Strel S3:E10

The unstoppable ultracyclist who rode around the world in just over 100 days: Lael Wilcox S3:E8

The adventure paraglider who soared to the edge of the impossible: Tom de Dorlodot S3:E7

The woman who battled -50°C and whiteouts to break polar world records: Preet Chandi S3:E6

The blind climber who conquered one of America’s toughest peaks: Jesse Dufton S3:E5

The surfer who shattered his back on a giant wave and returned stronger: Andrew Cotton S3:E3

The runner who blazed through 3,524 km in just 40 days: Tara Dower S3:E2

Trailer – Season 3

The woman who trains superhumans: Veronika Mayerhofer, Series 2 Episode 12

The man who raced over 90km in a wheelchair: Aron Anderson, Series 2 Episode 11

The man who ran 268 miles in record time, twice: John Kelly, Series 2 Episode 10

The woman who overcame death and landslides to reach the top of the world: Saray Khumalo, Series 2 Episode 9

The woman who free-climbed El Capitan in 24 hours: Emily Harrington, Series 2 Episode 8

The teacher who rowed the Atlantic at just 21: Jasmine Harrison, Series 2 Episode 7

The woman who ran 270km in a single day: Camille Herron, Series 2 Episode 6

The man who rowed around the world: Erden Eruç, Series 2 Episode 5

The woman who won America's toughest race: Lael Wilcox, Series 2 Episode 4

The lad from Wales who conquered the Yangtze River: Ash Dykes, Series 2 Episode 3