The four-year-olds take their first steps towards independence. Some are leaders. Some are mischievous. Others are more interested in buses and numbers than making friends.

The four-year-olds are back after a fortnight apart, and are joined by some new faces. Cheeky entertainer Taylor tries to befriend the girls.

This episode meets 12 five-year-olds. Jaja struggles with disappointment when a dance competition doesn't go her way. Alfie and George disagree about what the sun's made of.

New girl Sienna captures Arthur's heart. George takes the other children's rejection of his family's 'Essex Noodles' recipe to heart. Alfie makes a breakthrough in a painting competition.

This episode meets the six-year-olds who, after two years at school, are beginning to focus more on their own identity and are capable of discussing topics as diverse as race, religion, love and death

Caitlyn and new girl Leila bond when they try to cover up a cake mishap. Elvin feels rejected when Beatrice starts spending more time with Elouisa; can Beatrice and Elvin repair their friendship?

A group of four-year-olds meet for the first time and forge new friendships. Surprise visitors arrive - 10 eggs inside an incubator. The children watch in excitement as they hatch during the week.

During a building task, new girl Milana's play style threatens to alienate her from the group. A temptation task gives new boy Kahana a chance to shine. And Layton sets his sights on another girl.

Ten new five-year-olds arrive at the play centre. Romance blossoms between confident Jude and Ellie. Grown-up Ellie-Mae takes Daisy, who has cerebral palsy, under her wing.

Sensitive Nat vies for the attention of confident new girl Calla. Football ace Jet offers words of wisdom to her teammates and shows how winning can be fun as the children learn about competitiveness.

This episode examines differences between boys' and girls' behaviour, with a series of challenges that explore everything from levels of risk-taking to tactfulness

Can the boys and girls learn from each other's skills to solve a magic carpet puzzle? The boys are horrified by a cross-dressing task. And a wishing well appears in the play centre garden.

Noah is obsessed with dinosaurs and can accurately name dozens of the reptiles. But when given the opportunity to meet a life-size dinosaur, can Noah overcome his fear?

Self-proclaimed geezer Harper, who already has several girlfriends, has his eye on confident new girl Ava. Rory's had a difficult start at the nursery; can he find a friend to share his love of sheep?

This episode reveals how five-year-olds experiment with different identities. Jack seems to be the archetypal lad, but is he just using this persona to hide his sensitive side?

Daisy struggles when she meets some of the new arrivals at the nursery. Can Ralphy bring out Nathan's brave side? And what do the children make of Jack and Miylah's blossoming romance?

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