1. Hoarder

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. 7 September 2011. 45 min

Eight officers from the Houston SPCA answer the call from an animal hoarder who admits he is in way over his head.

2. Breeder

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. 12 September 2011. 45 min

Investigator Randy Farmer is called to a suspected dog breeding facility and discovers dozens of dogs in poor health. And a suspected cockfighting operation is investigated.

3. Frozen

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. 13 September 2011. 45 min

Police investigate a dog breeding facility where more than two hundred Rottweilers are found when a freak ice storm hits.

4. Trapped

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. 14 September 2011. 45 min

A mare named Bella has become stuck in a muddy creek and is slowly sinking. As time quickly runs out, the Animal Cops battle to save her life.

5. Vanished

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. 15 September 2011. 45 min

After investigators give the owner of three horses a warning about their care and conditions, the horses disappear.

6. Fragile

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. 19 September 2011. 45 min

The SPCA carries out a rescue operation of over sixty cats from a decaying house, while investigator Debbie Michaelson discovers newborn puppies hidden in a disused shed.

7. Chase

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. 26 September 2011. 45 min

Investigator, Maverick Wagner, tries to rescue an emaciated cat trapped in an empty house. Plus, Debbie encounters a pack of feral dogs and a grieving widow's potbellied pig.

8. Survivors

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. 3 October 2011. 45 min

Maverick seeks justice for the death of two huskies and fears there could be a third. SPCA investigates the death of horse, and rescue a dog trapped under a house.

9. Aftermath

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. 10 October 2011. 45 min

The SPCA enters the brutal world of illegal cockfighting when police surround the organisers in a nearby wood. Back at the shelter, two very ill horses shock the team.

10. Abandoned

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. 17 October 2011. 45 min

The Houston SPCA investigators discover a horse that has been left alone outside in a vacant parking lot.

11. Wounded

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. 24 October 2011. 45 min

Debbie attempts to bring an injured horse's owner to court and seizes numerous other neglected animals. Meanwhile a dog shot by a pellet gun is rushed to the SPCA hospital.

12. Endurance

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. 7 November 2011. 45 min

Debbie is horrified to find a herd of emaciated horses and Maverick rescues a dog with a serious leg wound. Plus, the team rescues some livestock during a heat wave.

13. Storm

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. 14 November 2011. 45 min

Maverick Wagner races to save an injured kitten that's fallen down a drain. Plus, investigators hurry to rescue a donkey buried up to its neck in mud.

16. Most Unwanted

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. 12 December 2011. 45 min

Houston SPCA looks back on some of the most heartbreaking cases that dealt with animals that just were not wanted.