Animal rescue groups do amazing things for homeless pets every single day. That’s why Pro Plan wants to say “Thank You” in a big way! For every thank you card shared through the end of the year, 10 pounds of Purina Pro Plan (up to 25,000 pounds) will be donated to Rally to Rescue groups! Check out the heartwarming video of adopted dogs be reunited with their rescuer below (it’s so sweet!), and then visit proplan.com/thankarescue.