This is the story of a family that loves science very much. Brothers who are challenged by their cunning parents while on a mysterious journey. That challenge involves uncovering clues that are hidden all over the apartment. As it usually happens, the younger brother will leave Andrej, the older brother in the lurch. But in Andrej, a real little researcher is crouching and he dives into the traces left by his parents. It is searched from the bedroom and the living room, through the bathroom, to the kitchen. Through this research, Andrej begins to discover various physical and chemical processes taking place around him, but also realizes that he is not completely alone, but that various visible and invisible beings live with him. You can follow the animated video series on the YouTube channel and discover together with Andrej where science lives, but also find out what science has to do with how we brush our teeth or dream.