A group of swimmers from developing nations train hard at a state of the art sports center in Thailand. Working for the first time with proper facilities and under the guidance of a world-class coach, they are making amazing progress and improving on their personal best each time. They have one year left in order to qualify for the Olympics. For most of them, it would be the first time somebody from their country gets through on their own merit. In a country full of inaccessible swimming pools, Shajan and Sajina are two Maldivian sisters who train in the sea. Nepalese Sofia can only swim during the summertime because there are no heated pools in the Himalayas. Eroi is a Rwandese boy who trains in a lake watching Internet videos. These are just some of the characters of Lane 0, a story about those unknown athletes who race in the side lanes and always finish last. Now they are immersed in an experience that will change their lives forever.