Episode 1
An American soldier rescues an injured puppy from the streets of war-torn Iraq. With help from the Houston SPCA, he flies the pup back to the United States.
Episode 2
The team investigates and attempted poisoning of a family dog in a Houston neighbourhood. And, investigators rescue two neglected, lame horses.
Episode 3
A deadly disease strikes the shelter, threatening the life of every horse in the SPCA's stable block. Plus, the team rescues an abandoned dog and her pups.
Episode 4
The team takes part in a dramatic dawn raid to shut down one of the city's biggest illegal dog fighting operations. What they find on the property shocks them all.
Episode 5
Assistant chief investigator Charles Jantzen sets out to save 70 cats and dogs in a filthy, privately-owned animal rescue centre.
Episode 6
A rookie's attempt to save a dog with a rusty metal chain embedded in its neck touches everyone at the Houston SPCA shelter.
Episode 7
Fifty animals are removed from an elderly hoarder's Texas home; two Great Danes must be rescued from a locked junkyard; Dog hit by car has one eye and broken leg.
Episode 8
Emaciated horses; dead dog tied to fence and Rottweiler with dying puppies; farm with animals in terrible living conditions; dog with embedded metal chain around its neck;all these and more are revisited as we get updates on the animals.
Episode 9
Chief Investigator Boller leads the rescue of a deer that was badly injured after running through an office glass window. And, an angry owner wants to keep his six dogs.
Episode 10
A senior investigator is injured and rushed to the ER during a raid at the home of an elderly cat collector. But will his injuries be serious?
Episode 11
SPCA investigators seize a horse with a horrific leg injury. Emotions run high as they fight to save the animal and bring the owner to justice.
Episode 12
Loose dogs; an abuser of a horse, cat, dog and bird receives justice; abandoned snake roams wild; pack of dogs terrorises a neighbourhood.
Episode 13
Investigator Barbra Christiansen has a threatening standoff with a neglectful dog-owner; a church drain traps puppies.
Episode 14
An angry man pulls a gun on Houston SPCA officer Max Mixson as he's investigating a complaint about the man confining more than 100 dogs in his property.
Episode 15
An abandoned dog wins the heart of an SPCA investigator; cops seize more than 200 dogs from an overcrowded puppy mill; investigators try to keep emaciated horse alive.