When Diane serves as Dr. Pol's assistant for the day, she ends up not being a fan of the job.
Ailing cows and sheep need medical attention; a mare and a terrier mix are in need of prenatal care.
Dogs that need help include an injured Boston terrier, a chocolate lab that has trouble walking, a terrier mix with a needle in its mouth, and a pregnant yorkie.
An injured Chihuahua; a Great Dane puppy is found close to death; two stray dogs are given medical care.
The doctors are busy with a large rabbit, a miniature pig and a Great Dane.
Dr. Pol, Charles and Brenda go out on the road while work is done on the office; a miniature donkey and cows need medical attention.
Diane and Charles look for a new office assistant; Dr. Pol investigates a genetic mutation that threatens the Filhart's herd; it's touch and go with an elderly retriever; the staff welcome their newest vet tech.
A series of emergencies has Dr. Pol running all over the county; Robert the rabbit pays a visit to the office.
A goat has a serious infection; a heifer needs to be de-horned; a miniature donkey is being aggressive; an injured cow needs attention; a chicken is under the weather.
A Yorkshire terrier's condition goes from bad to worse; an injured duck needs immediate attention.