The Semifinals continue as ninjas face up to 10 obstacles, including the new Drop Zone. For Split Decision, ninjas must choose between an upper-body and balance obstacle. The top 2 competitors face off on the Power Tower where the winner earns a Safety Pass for the National Finals.

The chefs take on the blind taste test challenge with messy consequences.

Kimberly gets her braces off and finds new popularity. Jack accidentally has his ponytail cut and embraces his new persona of authority.

Isobel and Maria take a trip together to look for answers. Kyle receives a message from his past. Michael makes a disturbing discovery.

Greylock is threatened with a massive flood as unseasonably warm weather melts the snow from the recent blizzard. Knowing Greylock will be underwater in hours, Sarah must ask for help from the last person she wants to rely on: Paul. Grover is challenged by his therapist to lean into what makes him happy, while Bella and Tyler take a big step in their relationship.

Jill's mother is in town, and she's brought Nathan, her sociopathic parrot, who torments Honey. But after his cage gets knocked over during a blackout and Nathan goes missing, all of the animals are suspects in his murder.

Hayley and Jeff help one of Roger's personas run a solar company.

Jimmy welcomes actress Melissa McCarthy, actor Jai Courtney, and a musical performance by Little Simz.

Stephen welcomes Dr. Jonathan Lapook and comic Fumi Abe.

Nick has a chance to get out of jail, but Grace likes things the way they are. An old acquaintance helps Frankie with the money laundering.

"He was everything a 10-year-old girl could ever hope for in a man. It was decided; I was in love. I started to wonder if the glow from my wedding dress would make him look washed-out. I began devising a plan in which he and I would end up '2gether 4ever', as all my notebooks stated".

The subject of Adri's latest photography exhibit takes Val by surprise. Carmen presents her campaign idea after coming to an agreement with Borja.

Top Cat and his gang are in for a smelly surprise when they try to resell expired fish sticks to unsuspecting Jellystone residents.

With a new rivalry crew threatening the Rez Dogs, Elora seeks out her Uncle to help them learn how to fight.

If a weird door in the floor opens, why not go down it? As chaos reigns, Lou confronts Lisa. Clues to Boro's past materialize. A new opening appears.

Flailing in his open relationship, Harry leaves a string of deeply regrettable voicemail messages on his boyfriend's phone.

Evie struggles to cope as she is drawn deeper into Jeni's world. Dom has doubts about mum Carole joining Darwin's stent trial, and Kylie must overcome her issues with new nurse Mel for the sake of a desperate young patient.

On her first day in the new role, Annika (Nicola Walker) and the team are called in to solve the murder of a man found in the Clyde, a harpoon piercing his head. The investigation leads them to the victim's struggling boat business, where not everything is above board.