With Old Frog's map as their guide, Billy the Bullfrog and Sachi the Tree Frog set off on their journey to the Great City on the Ocean. They arrive at the Reservoir, a gigantic pond 1000 times bigger than Billy's own. To cross the water, they enlist the aid of Pogo the Raven. River rapids, aggressive toads and many other challenges face Billy and Sachi on their journey. Will they find the metal fish of which Old Frog spoke? Will they really ride inside it's belly? LIsten to the whole episode and find out.