Sheldon and Leonard hire Professor Proton (guest star BOB NEWHART), the host of their favorite childhood TV show, to perform. Also, Howard and Bernadette run into trouble babysitting Raj's dog.
The 118 race to the rescues with emergencies at a spin class; in a hair salon and to a husband and wife in a compromising position; Buck discovers new cognitive abilities post lightning strike; Hen and Karen are concerned when they find out Denny has been seeing his biological father behind their backs; Maddie and Chimney enlist Athena and Bobby’s help with a suspicious neighbor.
Olivia must protect a new client who is under investigation; Quinn runs into trouble.
Patrick Jane and the CBI team are pulled deep inside the world of horse racing after a jockey is found murdered and suspects abound.
Olivia and the team rally when Quinn finds herself in a tragic situation; Cyrus turns to Olivia when an announcement affects Fitz's presidency.