In search of an answer to that seemingly simple question, Carl, a curious child, sets off on a great voyage of discovery. As one question is answered, more appear. Soon enough, where once stood but a curious boy, a great scientist will rise.

• Izzy Stannard
• Domagoj Čulina
• Ozren Muić
• Lado Skorin
• Vedran Butorac
• Ivica Gunjača
• Leonarda Obradović
• Višnja Skorin