Micro-Ducks From Outer Space

S1, E32: Scrooge, Webby and the Nephews are accidentally shrunk down to ant-size by the technology of visiting extraterrestrials. The minute ducks can get help at Gyro's laboratory. But first, the miniature ducks must make a dangerous trek across the giant-sized city of Duckburg, facing rats the size of elephants and hurtling automobiles as big as football stadiums!