The drama plays out on Andrew Robinson's (Jordan Smith) birthday, when he is on the way to a concert with Chris Pappas, Tash Williams, Summer Hoyland and Ed Lee.
At first it seems that there is a great night ahead for the gang, but the evening's first surprise comes when they discover that Sophie Ramsay (Kaiya Jones) has snuck into the boot of Chris's car.
Sophie has decided to play stowaway after Paul banned her from attending the gig, and when her hiding place is uncovered, Andrew bullies Chris (James Mason) into overloading the car so they don't have to turn around and take her home.
As the journey continues, there is another twist as Summer (Jordy Lucas) unexpectedly comes across the cheques from Andrew's secret app sale.
A huge argument immediately breaks out between Andrew and Tash (Valentina Novakovic) over the deal. When Chris tries to mediate between the pair, things take a dramatic turn for the worse as he gets distracted, loses control of the vehicle and crashes.
Rhys Lawson (Ben Barber) later stumbles across the wrecked car and tries to help, but he has a tough challenge ahead as the teens' lives hang in the balance…
Show bosses have promised that the crash will have huge repercussions, affecting the characters involved for the rest of the year.
Neighbours airs these scenes on Monday, September 17 and Tuesday, September 18 at 1.45pm and 5.30pm on Channel 5.
> 'Neighbours' teens to be involved in car crash - watch trailer
> 'Neighbours' car crash horror - official announcement
> 'Neighbours' "peer pressure" on Chris allows car crash to happen
> 'Neighbours' Rhys Lawson suffers career setback
> 'Neighbours' Andrew Robinson struggles to keep epilepsy secret
> Read more 'Neighbours' spoilers and news
Over on Home and Away, Darryl 'Brax' Braxton grows closer to Natalie Davison despite attempting to push her away.
Brax (Steve Peacocke) seems ready to distance himself from Natalie (Catherine Mack) later this month, making it clear that he wants her to back off as she continues to pry into his personal life.
Natalie's concerns increase, however, as Brax vows to give up on his brother Casey - furious that he is spending so much time with their father Danny. Brax is unaware that Casey is merely playing double agent, determined to find out what Danny is up to.
As Natalie urges Brax to keep trying with Casey, he brushes her off by insisting that he isn't the good man she thinks he is.
Natalie dismisses this, and when she continues to push things with Brax, sparks fly as they kiss and end up sleeping together…
Home and Away airs these scenes on Friday, September 21 at 1.15pm and 6pm on Channel 5.
> Read Digital Spy's recent interview with Steve Peacocke
> 'Home and Away' couple put romance on hold
> Read more 'Home and Away' spoilers and news Get the Inside Soap magazine on your iPhone or iPad