Experimenters Charlotte and Lennon visit Nina in her lab and discover that when we move we push through the air and it feels windy. Next they visit the Sir Chris Hoy Velodrome in Glasgow, and meet a cyclist to see how he pushes through less air when he cycles fast. Finally, they do an experiment to find out why cyclists cycle in a line.

Experimenters Emily and Marzouq visit Nina in her lab and discover that curling is a sport played on ice. They also find out that things can slide faster on wet surfaces. Next, they go to a curling rink and have a go at sliding for themselves. Finally, they find out how curlers can slide and stop on the ice.

Nina and her Experimenters learn that footballers play as a team, and that it helps if they make a plan to cover different areas of the pitch, and pass the ball between them. Finally, they do an experiment to discover why the goalkeeper is an important member of the team.

Nina investigates how we can spin and turn faster - with the help of Felix, her touch neuron. Experimenters Amy and James visit Nina in her lab and discover that there are different ways of spinning and that we spin around an invisible line. Next, they visit a champion trampolinist to see him doing some amazing somersaults. Finally, they have a go at spinning for themselves to find out how scrunching your body in helps you turn faster.

Nina investigates how we can get better at climbing - with the help of Felix, her touch neuron. Experimenters Evie, Sonny and Will visit Nina in her lab and discover that we use our arms and legs to climb and that our legs are usually stronger than our arms. Next, they go to a climbing wall to meet a para-climbing champion and see how she uses her weight to help her climb. Finally, they have a go at climbing themselves to find out how to stay steady and climb better.

Nina learns about what sports players eat and drink with the help of Bud, her taste neuron, as well as finding out what it takes to become a rugby player.

Experimenters Adam, Maha and Rani visit Nina in her lab and discover what happens to people's breathing when the exercise.

The scientist investigates how to start faster in a race, with the help of Belle her hearing neuron.

Nina investigates how we swim - with the help of Felix, her touch neuron. Experimenters Nina and Olivia visit Nina in her lab and discover that we use our arms to pull us through the water when we swim. Next, they have a go at swimming themselves and find out that our legs push us through the water. Finally they meet some swimmers and see that they use their arms and legs in different ways for different strokes.

Nina, Amna, Katie and Rachael visit an athletics stadium to meet a long jumper and see how he can launch himself so far.

Experiments Grace and Sultan visit Nina to discover about the game of snooker, and they find out how the balls move when they bump into each other.

Nina investigates why we bend our knees when we land and experimenters Grace and Imogen meet a gymnast.

Nina learns how high divers make such a small splash when they hit the water with the help of Belle, her hearing neuron.

Experimenters Brandon and Ore visit Nina in her lab and discover that it's easier to catch big balls than small balls. Then, they visit Edgbaston cricket ground and meet some cricket players to find out about catching and how they can tell where the ball is going to land. Finally, they have a go at throwing for themselves and discover how to throw as far as they can.

Experimenters Connor and Sarah-Louise visit Nina in her lab and discover what happens to a ball when it bounces. Next, they meet some basketball players and find out that it makes a difference if you bounce balls on a hard or a soft floor. Finally, they do an experiment to find out what's inside a basketball and why some balls bounce better than others.