Rotfuchs Hilfe, mein Handy ist ein Superschurke!

Everyone, really everyone else has a mobile phone – only Franzi doesn't get one. It’s not until Franzi changes schools that her parents finally come around. But what no one suspects is that Franzi's new phone has a life of its own! It's called Dandy Smart and has a lot of ideas about what Franzi could do. For example, getting a super chip that would give Dan unlimited storage capacity – and with it, Franzi unlimited possibilities! But the nasty supervillain Lady Ballerina has her eye on the chip too and wants nothing less than to secure world domination with it! Can Franzi and Dan stop her in time? A race against time begins.