The first event of this year's series was the Paralell Slalom, which saw the contestants ski their way past 12 gates, reaching speeds of up to 50km/h.
They were paired off for seven head-to-head races according to their size, stature and ability.
First, Spencer Matthews went up against Louis Smith, and boldly proclaimed: "Olympic status means nothing here because they’re not skiers."
They proved to be famous last words as Louis ended up beating him down the mountain.
Robbie Fowler triumphed over Kadeena Cox, before Caprice claimed victory over Amy Willerton, the replacement for injured Vogue Williams.
Mark Dolan admitted he was the "underdog" after being drawn against star signing, Sir Bradley Wiggins. The cyclist won their clash, with Mark reacting: "There’s worse people to lose to!"
There was rivalry between rugby players Jason Robinson and Gareth Thomas, who ended up in a battle of England vs. Wales.
However, disaster struck when Jason fell over backwards at the second gate, leaving Gareth to cross the finish line alone.
Big Brother winner Josie Gibson had an early lead against Olympian Jade Jones, but eventually fell behind and lost their race.
Finally, TOWIE's Lydia Bright managed to beat journalist Emma Parker Bowles.
Host Davina McCall announced Louis completed the Slalom in the fastest time, 16.42 seconds, and was therefore the overall winner.
Meanwhile, the seven race losers each had to face the ski jump to decide who would be going home.
The Jump 2017 week one ski jump results
- Spencer Matthews - 14.55 metres
- Kadeena Cox - 13.8 metres
- Amy Willerton - 12.83 metres
- Mark Dolan - 10.45 metres
- Jason Robinson - 14.95 metres
- Josie Gibson - did not jump
- Emma Parker Bowles - 11.0 metres
Jason recovered from his earlier tumble to achieve the best score of the night, 14.95 metres.
But nerves got the better of Josie, and after getting in position at the starting bar, she panicked and decided not to complete her jump.
As she was the only contestant to bottle it, Josie automatically became the first of this year's contestants to be eliminated.
The Jump continues next Sunday at 7.30pm on Channel 4.