The Piris take refuge in grumpy Millie the squid's cave during a storm but accidentally damage a painting. Can they find a clever way to fix it before Millie finds out? 

The shadow of a monster causes panic among the Piris, apart from Nugget, who is keen to investigate a new mystery. She finally tracks down the creature, but is all exactly as it seems?

Brinicle tries to turn the Krispy Krill shack into a top restaurant to impress a secret reviewer, but chef Pancake's cooking proves unpopular, and Looph's plate machine misfires. 

Flutter accidentally clones himself, leaving the berg flooded with scores of badly behaved penguins. As trouble spreads, the Piris must find a way to lose the unruly duplicates. 

The Piripenguins are annoyed to find that their holiday home has been double-booked by penguin nemesis Millie the Squid. With both refusing to move, is a resolution possible? 

The Piripenguins vow to change shopping-mad Brinicle's wasteful ways. But when their clever recycling plan proves too exhausting, Looph comes up with an alternative solution. 

When Nugget's favourite teddy bear gets accidentally washed by Pancake, the Piripenguins try to restore its unique smell by painstakingly recreating Nugget's happiest memories. 

After a spate of unfortunate accidents, Pancake is convinced that rubbing a lucky icicle will bring him good luck but panics when it's rubbed away, until his friends step in. 

Nervous about public speaking, Looph builds a robot to deliver a science talk in her place, but her friends are determined to help her do it herself. 

Out in the ocean, the Piripenguins encounter a massive, angry whale called Norman, who wrecks their boat. Can the Piripenguins brave their fears and find a way to cheer him up? 

Pancake is persuaded by Nugget to have a massive birthday party, but when the bash grows increasingly over the top, he finds his own unique way to handle the pressure. 

Nugget attempts to make all her Piri friends' secret ‘wishing tree' hopes and dreams come true - but gets them the wrong way round, with funny and very unexpected consequences. 

The Piripenguins face a few tricky problems, but they discover that swapping items and working together can provide clever solutions, turning a regular day into an extraordinary one.

After Pancake saves him from a mishap, Flutter vows to repay the debt. But his risk-averse behaviour drives Pan to distraction until a real emergency allows the debt to be repaid. 

Exhausted with requests for help, Looph deliberately disappears. The Piris turn detective, searching the berg with little success until her ingenious plan is finally revealed. 

When the Emperor Penguin visits the berg, he discovers Pancake is a long-lost prince. Pancake learns how to act royal, but all the attention goes to his head. 

The Piris plan a trip to Tippety Top to see the famous southern lights but lose each other in an ice fog. When Nugget thinks she sees a monster, Pancake proves to be an unlikely hero. 

When Millie the Squid devises a set of tough penguin games to test the Piripenguins, Pancake and Nugget must stick together and rely on their friendship to succeed. 

When Pancake's precious golden algae goes missing, all the Piri friends fall under suspicion. Pancake turns detective and replays the evening - but the solution is far from obvious! 

Brinicle invites his Piri friends round to taste his brilliant brioche. Yuk - it's chewy and hasn't risen at all! Despite this, Brinicle announces he has entered a baking competition. A disaster looms, but Flutter has an idea. 

Stories start appearing in the berg's weekly newspaper about the Piripenguin friends. The Piris end up arguing with each other and quickly agree that they need to find the secret gossiper! 

Nugget's new fitness device sparks a craze on the berg. Running, skating and jumping, the Piris battle it out to score the most points, with a surprise winner. 

A sales rep visits. Despite Pancake's doubts, he convinces the Piris to buy extra flippers. The penguins discover that their purchases are duds but find a clever new use for them. 

The Piripenguins fall under the spell of a magical Merguin, a mermaid-penguin, who has the ability to change their personality. But all is not as it seems. 

The Piris are in the final of the synchronised swimming competition and are beyond excited. All except Pancake, who worries he will spoil their chances of glory with his two left flippers. 

Nugget annoys Pancake with constant demands while ill in bed. To say sorry, she makes him a special bracelet. But Nugget is upset when others get ‘nuglets' too.