Three of the UK's most renowned chefs are going back to catering college. Tom Kitchin, Theo Randall and Michel Roux Jr are each looking for a young student to take under their wing, someone they can mentor and inspire, who can eventually become their protege.
The fourth episode continues with Michelin-starred chef Tom Kitchin's search as he takes his four shortlisted students from his old catering college in Perth to cook at the exclusive venue just outside Edinburgh, Melville Castle.
At the castle, which used to be Mary, Queen of Scots' hunting lodge, the aspiring young chefs are put to the test as Tom introduces them to his favourite ingredients - Scottish game. With rabbit, duck, wood pigeon and wild fruit on the menu, the students are inspired by Tom's enthusiasm about the local produce. But with rival chefs Michel Roux Jr and Theo Randall arriving for lunch, their excitement soon turns to nerves.
In the kitchen the students begin creating their four-course lunch, but, when cooking for two of the most distinguished chefs in the UK, preparing pasta and putting together a salad can seem more daunting than it would normally. Despite the pressure, the hopeful apprentices are buoyed by Tom's words of advice and they do their best to rise to the occasion.
With Tom's reputation on the line, he can only hope his chosen four impress and that Theo and Michel's scrutiny of the competition gives them food for thought for their own search.
Come the end of the day, Tom must make the hard decision as to who has impressed the most and lived up to his expectations as one student will be going home and only three students will stay on in the hope of becoming his protege.