Scrappy and Oopie are playing, when a pony arrives from Hollywood. Scrappy tries to ride him, but the pony throws him. When Oopie gives him sugar cubes, the pony takes a liking to him.
In 1921, British Lord Athleigh arrives in Dublin with his daughter, Helen, to engage in peace talks. As wanted Irish rebel leader Dennis Riordan is not recognized in public, he is able to move about freely and saves the Athleighs from an assassination attempt by a radical faction.
Peyton Wells (Ben Lyon) rescues Judy Jones (Joan Marsh) from a very dull young man, at a sedate party given for her by her multi-millionaire grandfather Silas P.
Someone is murdering the cast and crew of a new Hollywood movie, and the leading lady may be next. As a police detective locks down the lot and refuses to let anyone leave, the studio’s publicity head and his secretary attempt to solve the murders themselves.