The Kingdom of Frank is in a terrible state - it's piling up with rubbish and waste. Princess Aqualine is recovering from an illness caused by drinking dirty water but manages to come up with a 'knightly' solution to the pollution problem.
King Frank's bath pipes exploded and knocked him out. Princess Aqualine remembers a story about of a missing source of pure clean water - the Fountain of Frank - but does it exist and can it be found?
The three knights, Catrain, Leofrick and Alf have been told by King Frank that they can't go on their ecoquest until they have completed one final traditional test of strength - removing the old bin from the ancient Binstone.
The knights, Catrain, Leofrick and Alf have set out on their quest to find the lost Fountain of Frank, but without the permission of King Frank. Now the king's soldiers are hot on their trail
After crossing a river full of poo the knights have arrived at the ocean's edge only to be submerged by a giant wave of plastic rubbish. But their biggest challenge is yet to come.
The brave ecoquesting knights, Catrain, Alf and Leofrick, have defeated the gigantic Landfillersaurus which arose from the Plastific Ocean - but now they have something even stranger and more ghostly to fear.
Encouraged by the ghostly creatures the knights continue of their ecoquest - but have come across a mountain of scrap metal and are under attack from falling cars, buses and vans.
The Knights of the Ecoquest meet a strange detective in a land where all the trees have been chopped down. Can he help them find the lost Fountain of Frank?.
After travelling through torrential rain the Knights of the Ecoquest now come face to face with another strange beast. Will this mysterious creature have the clue to the missing location of the Fountain of Frank?.
Climate change is severely affecting the three brave knights on their ecoquest. Will they make it through the forest of fire? Can things get any hotter?
The friendly camel has told them of oasis of water nearby - but do they have the strength to carry on? And can they solve the 'riddle poem' in the map to find the Fountain of Frank?
The eco-knights have solved the riddle of the map - the Fountain of Frank is near the castle. They're almost home - but wake up to find their horses, armour, clothes and the map have been stolen.
The eco-knights have not only had the map showing the location of the Fountain of Frank taken - but also all their armour and clothes. Now they're locked up in just vest and pants in King Frank's dungeon and no one knows where they are.
The knights have successfully completed their ecoquest and found, with help from Pete the Piper, the long lost Fountain of Frank. Much to the relief of the King, Queen and Princess Aqualine.