In the first episode of this enchanting series, Siblings Penny, Pamela, Peter and Patsy discover a magical village beneath a trapdoor in their playhouse floor. Soon, mysterious little green men called Ogs capture the rambunctious siblings!
In Episode 2, Penny fails to return from her mission, so her sisters paint brother Peter green and send him to her rescue. But soon enough, Peter encounters some unexpected trouble. Based on the novel by Pierre Berton.
In Episode 3, the five siblings are captured by a variety of Ogs, and without any hope of help from the outside, they must find a way to rescue themselves. Based on the novel by Pierre Berton.
In Episode 4, the children discover that the magical Og village is deserted. They must now sail down the underground river to investigate the mysterious disappearance. Based on the novel by Pierre Berton.
In Episode 5, the Ogs have an enemy: the Glogs! Now others know the Ogs exist, so Penny has only hours to get the Ogs back underground before they are discovered! Based on the novel by Pierre Berton.
In Episode 6, Peter is bullied at school when the other kids discover his dream of being a garbage truck driver. But things look up when he meets Ogre, who lives in a garbage dump. Based on the novel by Pierre Berton.
In Episode 7, four of the kids are on a tour with an Og guide when a troll blocks their path and makes them answer riddles in order to pass. Can the siblings work together to solve the puzzles? Based on the novel by Pierre Berton.
In Episode 8, Captain Kidd finds the perfect present inside the children's house. Can the kids clean up the Og's mess before their mom gets home? Based on the novel by Pierre Berton.
In the final episode, Pamela accidentally introduces the idea of voting for a leader to the Ogs. Now they have a close election campaign that could have disastrous results! Based on the novel by Pierre Berton.