Big Bird looks for Ernie in a land filled with Rubber Duckies of all different shapes and sizes. Big Bird tries to remember what Ernie's Rubber Duckie looks like to distinguish it from the others he finds: including a moustachioed duckie in an art exhibit, a giant duckie with a booming squeak, and a fly-sized duckie that squeaks softly. Big Bird finally finds a conveyor belt of identical Rubber Duckies, but they each make an unusual sound. The last duck in the row squeaks the right squeak, which means Big Bird has found Ernie!