K9 follows the adventures of three teenagers - Starkey, a young rebel genius whos lost his parents in mysterious circumstances, not to mention his own way in society; Jorjie, a very capable fighting dynamo in the deceptively cute frame of a privileged-schoolgirl from the upper echelons of society; and Darius, a sneaky and cunning delivery boy who knows the city like the back of his light-fingered little hand and, of course, K9, a cybernetic wonder a robotic dog built of mysterious alien technology and pulled through time and space to arrive on planet Earth. Together, K9 and his trio of teen companions investigate and engage all manner of mystery and menaces from beyond the stars, between dimensions or the dark and ancient places of the earth, and they try to fix the rips in time-space that are manifesting about the city and around the globe.