It's instant restaurant time. In Waikato, modern-day hippies Neena and Belinda try to impress judges Ben Bayly and Gareth Stewart and four rival teams with their best three course dinner.

Dan and Sam, the youngest contestants, try to impress the judges.

June and Steph face kitchen conundrums and a lost ingredient.

Newlyweds Christie and Dan work a Mexican-themed restaurant in snowy Dunedine.

Tracey and Neil host the final round before elimination.

Aaron and Heather kick off group two and try to set the bar for the other competitors.

Ian and his wife Sandie must prove their worth after talking big last round.

Jessie and Ricki enjoy their triumphs and work through tears and tantrums.

Josh and Aaron try to cook their way into the top three to avoid the dangerous fourth spot.

Sisters Kelly and Megan are under pressure to impress; the judges reveal a shocking twist.

Mothers Theresa and Joelle struggle to plate up in a chaotic kitchen.

Tracey and Neil aim to improve over their previous 57 points this time.

Josh and Aaron are determined to score higher than their previous 68 points.

Maura and Steve try to impress with their restaurant's look in addition to the food.

Dai and Dal create a unique Laotian-style restaurant; the judges reveal a twist.

Teams split into groups to cook a healthy meal for the children of Auckland's Ronald McDonald House.

Teams face their first cook-off to determine who will enter the elimination round.

Two teams face off in 90 minutes to prepare and serve an entree to 4 special guest judges.

Teams must cook for 150 people in 90 minutes to avoid the elimination round.

Teams have 45 minutes to cook; the bottom three teams will move onto the showdown.

The bottom 4 teams face elimination as they cook for judges Ben and Gareth and four guest judges.

The 6 remaining teams aim to please as they prepare lunches for the judges and eight mystery guests.

As teams compete to avoid sudden death, a twist in the challenge throws them off their game.

The bottom two teams face sudden death as they cook for Ben, Gareth, and four guest judges.

The top five teams compete in a people's choice pizza challenge in Auckland to avoid sudden death.