Supergirl watches an old movie where the leading man loses out on a happy life by waiting too long to propose marriage. Determined to save Superman from the same fate she tries to fix him up with various women like Helen of Troy and Saturn Woman. Beyond the obvious silliness, she ends up fighting a minotaur and a unicorn(!?!) in ancient Troy, spouts one liners like Robin in the 60s Batman titles, and generally seems to make herself a pest wherever she goes.
Add to that a generally lax bit of editing (one planet is referred to as having a blue sun, but it's colored orange throughout, and Supergirl's mini-skirt which is blue sometimes and red at others, etc.), and this all amounts to a totally disposable piece.