The four brothers, Lightning, Stumble, Swift, and Dash, are Indian runner ducks who have lived on the Backyard Farm since hatching as baby ducklings. Like most brothers, they truly love each other, but three of them are also incredibly competitive and devote hours attempting to beat each other at pretty much anything and everything.
Their rivalry is so great and severe that it often disrupts daily life on the backyard farm. Stumble, however, rarely gets involved with all this; he was born with a poorly wing and knows he has no chance of ever beating his four incredibly talented and dedicated brothers. Although he loves running, the fear of coming last every time they race is too much for Stumble to face.
If you hold a runner duck in your arms facing you, he will give you a hug by wrapping his long, slender neck around your neck. I can imagine them all in running a vest, shorts and sweat bands...