Junior Taskmaster

It's time for heat four, as the brand-new series continues. Mike Wozniak is in his element because he gets to build sandcastles. Rose Matafeo judges what would be of most use in a zombie apocalypse. And this week's fab five - Billy, Emilie, Jamie, Kaif and Kyra - who are all aged between nine and 11, become acquainted with Hollywood royalty.

Prize task: The object that would be most useful in a zombie apocalypse.

- Kyra: A pop-up coffin. - 5
- Jamie: Roller-skates with fireworks on them. - 4
- Kaif: A survival kit, contain a bat, a map, a rope and a gas mask. - 3
- Billy: A cactus. - 2
- Emilie: Mint oil. - 1

Task 1: Without damaging the sandcastle, transfer the sandcastle form plinth A to plinth B. The least-damaged sandcastle wins. You have five minutes. Your time starts now.

- Kyra - 5
- Billy - 4
- Kaif - 3
- Jamie - 2
- Emilie - 1

Task 2: Do one of these five things. Take five pounds; paint your face blue; eat a lemon; dress up like Mike; got to the caravan, open the door and shout: "I'm on a caravan holiday." If you are the only person to do your chosen thing, you win five points. If anyone else does the same thing you choose, you get zero points. You have five minutes. Your time starts now.

- Billy and Jamie: Both eat the lemon. - 0
- Emilie, Kaif and Kyra: All three paint their faces blue. - 0

Task 3: Leave no stone unturned. When you have turned over all of the stones, you must put your hands on your head and shout: "No stone is unturned!" Most turned stones wins. You have five minutes. Your time starts now.

- Kyra: 137 - 5
- Jamie: 135 - 4
- Kaif: 128 - 3
- Emilie: 109 - 2
- Billy: 70 - 1

Live task: Stack the toilet rolls into a tower. When Mike honks his horn, you must move down two spaces to the left. Mike will honk his horn five times. Tallest town on Mike's final whistle wins.

- Emilie: 6 - 5
- Kyra: 4 - 4
- Jamie and Kaif: 3 - 3
- Billy: 2 - 1

Scores

- Kyra - 19
- Jamie - 13
- Kaif - 12
- Emilie - 9
- Billy - 8