S2 E1 • Hide And Seek

S2 E2 • Getting Goosebumps

S2 E3 • Nina's Cake Bake

S2 E4 • I Can See A Rainbow

S2 E5 • Terrific Teeth

S2 E6 • Touching Clouds

S2 E7 • Smelly Feet

S2 E8 • In A Spin

S2 E9 • Bubble Trouble

S2 E10 • Fun In The Sun

S2 E11 • Tummy Rumbles

S2 E12 • Finding Flowers

S2 E13 • Lovely Lollies

S2 E14 • Brilliant Bones

S2 E15 • Rumbling Thunder

S2 E16 • Nina Gets Nosey

S2 E17 • What A Fright

S2 E18 • Let's Hear It For Ears

S2 E19 • Making Waves

S2 E20 • Splish Splash

S2 E21 • Baby Talk

Jessica and Lewis want to know why their baby cousin can't talk. They try to get by without talking to find out what speech means to us.

S2 E22 • Funny Honey

Aine asks Nina how to make honey. They watch a film of bees at work to understand.

S2 E23 • Digging Dogs

Eden doesn't know why his dog keeps hiding things. With Ollie and the other Neurons' help, they try to sniff out the answer.

S2 E24 • When The Wind Blows

Belle, the hearing neuron, shows Nina why windy days are so noisy. They discover how moving air creates sounds.

S2 E25 • Tremendous Toes

Nina takes Molly on an assault course. Felix shows them that, without toes, they could hardly do anything.