Shootings, stabbings and car crashes are unfortunately routine for the paramedics of Mecklenberg Country in Charlotte, North Carolina.

Kansas City's MAST is one of the most effective ambulance services in the world, with the ability to respond to emergency calls within eight and a half minutes.

Paramedics in Reno, Nev., which is nicknamed "The Biggest Little City in the World," treat a variety of patients as the population grows during tourist season.

The Centers for Disease Control, the New York Police Department and the Federal Bureau of Investigation work together in order to respond to biological anthrax.

A teenage boy is one of a string of patients in a Dallas hospital who exhibit bizarre, manic behavior before lapsing into comas and dying.

The CDC, the US Army and a Bronx Zoo veterinarian work together in order to attempt to identify a disease that affects people in New York via mosquitoes.

A brain parasite disables a 9-year-old hockey player; a computer programmer suffers severe mental impairment when stricken with the world's deadliest parasite.

A dance instructor is stricken by abdominal pains and a mass in her colon; a vacationer has seizures; a scientist's skin and eyes play host to parasites.

A parasite sickens an elementary school teacher; a dancer experiences a mystery illness after breaking out in lumpy hives that spread quickly over her body.

An 11-year-old hockey player is stricken with a high fever and lapses into a comatose state; a doctor falls severely ill after eating food at a rodeo.

When Sal's father died, he fears that he will never become a dad, due to his excess skin; Rebecca lost weight, but she feels trapped in her extra skin.

Although Autumn wants to make up for lost time with her son; when Cody was 500-pounds, he always pretended to be happy, but now he has too much skin.

Ronnie and Michael Robinette's extra skin is getting in their way; 64-year-old Renee has excess skin, which prevents her expressing her true self in public.

Tamika is uncomfortable because of her excess skin; Emily's son Jose, has gained so much weight that she blames herself, now they both struggle with loose skin.

A woman visits the ER after losing a sex toy in her rectum; a man with a bug stuck in his ear sees the doctor; a pre-teen is impaled by a giant splinter.

A pregnant woman races to the emergency room with stomach pain; a woman has a bike brake embedded in her thigh after an accident.

Dr. Crawford removes a barbed nail embedded in the forearm of a patient; Dr. Mellick examines a patient with the heel of a stiletto buried in their eye.

Dr. Lee sees a patient with a 10-year-old neck lipoma.