Based upon the Catalan drama series Polseres vermelles, the series focuses on a group of teenagers living together as patients in a hospital's pediatric ward.

Five teenage girls navigate the twists and turns of their complicated emotional lives, and learn the secrets of the heart through their friendship.

Felix Bender (Nikita Wokurka) is an eleven-year-old orphan who lives with unloving foster parents. For five years he’s been waiting for his older brother to pick him up, but his hopes fade away with each year’s passing. On his eleventh birthday Felix gets a laptop from the only person who cares about him, his neighbor Rasmus. The man hopes that Felix would be able to get in contact with his brother through the internet, but during the first connection a little accident happens: a mouse runs over the keyboard and accidentally makes the laptop download a program that awakens the old car and gives that car a soul. Soon the boy and his car are being hunted by the owners of the program, who want to get it back and destroy the car.

A hired Santa makes promises to a little boy he can't really keep.

Not knowing anything about love, Felix has become used to a 3months relationship cycle after which he is left in grief and misery on a regular basis. It doesn't affect him at length, knowing that he has his flatmates Moritz, Jan and his sister Regina to rely on. When Jan decides to move together with his bride to be and Regina cancels their long planned holiday Felix finds himself alone. Moritz of all people who's in constant trouble with his girlfriend Leandra wants to help Felix to find the right one: uncomplicated, forgiving and independent. The first try already has Felix end up in the arms of Maja. Although Maja is done with men and relationships she's OK with a little affair she doesn't tell Felix that she has a 7 year old boy at home. Against Moritz's strong advice Felix falls in love head over heels. But when he hears about Maja's son Paul he panicks. Only Paul knows his mom and her new boyfriend are made for each other...

The series is about a cruise ship that travels to places around the world.