When pony-mad Sarah was finally allowed to have her very own pony, she shocks everyone in choosing Podge - a big, smelly, bad-tempered, pony who no one wants. Before Sarah can take him home, Tippy - her strict riding instructor - must put him through his paces. But Podge has a nose for trouble and he gets up to all sorts of mischief. Will he behave himself in front Tippy? Meanwhile, Gretchen - the snobbiest rider at the stables - tries to ruin everything. Will she succeed in stopping Sarah from taking Podge home?