Get inside mountain biking's first family

The siblings get serious for training in Queenstown, New Zealand – plus indulge in bungee jumping for fun.

Dan returns to racing and the family get a new headquarters. Gee races in round one of the World Cup.

Danny MacAskill visits for a ride with Dan and Gee before the Athertons head to Fort William.

The trio compete in Switzerland at the World Cup and then go for flights in the Flying Bull stunt plane.

The team travel to Italy for a week of freeriding before the next World Cup event.

Rach, Gee, and Dan compete in the World Cup in Mont St. Anne, Canada, and it's rough day for all three. Then, it's off to America for some lighthearted fun before the next race.

The team race in round five of the World Cup in USA, then head to Whistler, Canada for some time off the bike.

The siblings get stuck in some mud on motorbikes before round six of the World Cup in France.

Rachel and Gee race in the last round of the World Cup. Dan tries an enduro event in Sweden.

Dan develops new tracks at his home in Wales. The trio end the season at the Red Bull Weekend Warriors event.

Rachel, Dan and Gee leave their hometown in Wales for the winter to train in sunny southern California.

Gee and Rachel land in Portugal for the first big race of the year, and the conditions are less than ideal.

The three Atherton riders head to the first national of the year in England. After that, it's off to Monterey, California for the Sea Otter Classic and some serious downhill action.

The siblings race in Belgium for the first world cup event of the year.

After success at the UCI MTB World Cup, the Atherton trio pull into Vernon, New Jersey for the US Open.

Gee tapes a wheelbarrow to an ATV for a fun ride, but it might not be the smartest of mid-season decisions.

Tragedy strikes when Dan crashes hard, sustains a neck and head injury, and lands himself in the hospital.

Gee races alone at the British National Championships and the World Cup in Switzerland.

The fifth stop of the UCI MTB World Cup takes Gee to Italy, where he's feeling the pressure to perform.

Gee and Rachel head to Whistler, BC< Canada for the Crankworx event and a bit of fun.

Rachel and Gee arrive in Windham, New York for the World Cup Finals. Rachel battles her still-recovering shoulder and tries to get back into race mode. Gee readies himself for the most important race of his career.

Gee competes in Red Bull Rampage and enjoys some American entertainment in a gun store and a fireworks shop.

Rob Warner meets Rachel Atherton, who is one of the greatest downhill bike racers of all time.

As the UCI DH MTB World Cup season approaches, the time for talk is over. Riding fast is all that matters now.

The team travel to Italy for a week of freeriding before the next World Cup event.

Dan returns to racing and the family get a new headquarters. Gee races in round one of the World Cup.

Gee and Rachel head to Whistler, BC< Canada for the Crankworx event and a bit of fun.

Rachel Atherton gives it everything as she charges down the course in Fort William, United Kingdom.

Paul and family head to North Wales to watch Red Bull Hardline, one of the toughest assignments in MTB.

Rob Warner chats with Rachel Atherton ahead of the race at Fort William during the 2019 UCI World Cup season.

Rachel Atherton gives it everything as she charges down the course in Vallnord, Andorra.

Gee Atherton takes on the downhill course in Fort William, United Kingdom.

Manuel Lettenbichler and Paul Bolton both get to go riding – Mani even takes on a different kind of bike.

Watch as Gee Atherton speeds downhill in Leogang, Austria.

Danny MacAskill visits for a ride with Dan and Gee before the Athertons head to Fort William.

Top MTB riders explain how they balance the risk of head injuries with the desire to go faster at all costs.

The siblings get stuck in some mud on motorbikes before round six of the World Cup in France.

Follow two-time Enduro World Series champion Richie Rude as he takes time away from competition.