Two men are hauled in for vandalizing a fence in Des Moines, Iowa; Savannah police go undercover to catch a drug dealer; and a man asks to be arrested while lying naked on the street in Springfield, Mo.

An SUV flips over during a high-speed chase in Springfield, Mo.; a driver tries to eat his supply of marijuana before the police find it in Chattanooga; and a man threatens his wife and infant with a gun in Hillsborough County, Fla.

Carly gets her toe stuck in a bathtub right before she is supposed to leave for a date. Meanwhile, Sam and the rest of the gang get trapped in Canada when she's caught trying to smuggle Fat Cakes over the border.

Cesar spends a week at Fort Hood in Texas, helping members of the U.S. Army train their undisciplined dogs. Included: an Australian shepherd with a fear of men in uniform; a Shetland shepherd that barks incessantly when helicopters and planes fly overhead; a miniature bull terrier whose excitement is uncontrollable.

As Jenny Lee begins to settle into her role as there is a new arrival at Nonnatus House. The new girl Chummy attempts to show her worth but, with a keenness to please, and her inability to ride a bike, she finds it hard to earn the respect of Sister Evangelina. Jenny sees an unfamiliar darker side of life following an encounter with a runaway.