Los Angeles, 1931. On the heels of an unsavory investigation involving a famous comedian, Perry Mason--a PI struggling to make ends meet--and his right-hand man Pete Strickland are hired by attorney E.B. Jonathan, Perry's mentor, to solve a perplexing case: the brutal kidnapping of one-year-old Charlie Dodson, whose parents were targeted for a $100,000 ransom.

Mason and Strickland lean on Virgil, again, for extra-legal assistance. Following Sister Alice's recovery from a frightening episode, Birdy urges her daughter to renounce her claims about baby Charlie. E.B. faces the reality of his financial situation and takes his frustrations out on Della.

While Mason and Della run a solemn errand up north, Strickland tracks down the sergeant originally assigned to the Dodson case. Before returning to L.A., Mason drops in on his ex-wife Linda and son Teddy, hoping to make amends for his recent shortcomings. Della sets out to find Mrs. Dodson more capable legal representation.

After a manhunt pegs brothers Rafael and Mateo Gallardo for the McCutcheon murder, Perry initially resists taking the case… until a hunch reels him in. Later, Della goes on a date with a new flame while Paul wrestles with a shocking truth.

As Rafael and Mateo face discrimination from their fellow inmates and the court, Perry continues his push for justice, while Della engages the help of wealthy socialite Camilla Nygaard. Later, Paul chases leads in the Hooverville, and Perry goes head-to-head with tycoon Lydell McCutcheon.