The Robinsons are part of an effort to colonize an alien planet. Their transport ship was attacked early into the program by an alien Robot. Most of the family ships are knocked free and stranded on an unknown planet. The Robinson are joined by an engineer named Don West and a stowaway named Dr. Smith (but not really). Plus Will Robinson finds himself bonded early on with the Robot, whose artificial intelligence got rebooted and imprinted on the child. The colonists are forced to team up and get off the planet before everything goes caput.
But I'm not writing about the Robinsons in this blog post. This post is about Debbie the Chicken. Debbie was a bird on the original Dr. Smith's colony spaceship. Debbie survived the original crash-landing without injury and helped Don realize that it was safe to breath the air. Don's initial plan was to abandon Debbie to the alien landscape, but he saved the bird -- and in turn saved himself due to a GPS tracking system within the chicken! He ended up adopting Debbie and giving her a name in gratitude!
Later on, Don volunteered for a suicide mission to get off of the planet and lead the transport ship to their planet. He ended up entrusting his beloved bird to the loving care of Dr. Judy Robinson -- not that she appreciated this gift:
Later on, Judy uses Debbie as a distraction when saving her mother from the cruel Dr. Smith. I was worried that they would leave Debbie behind, but Judy took a moment to return Debbie to her box:
Unfortunately, we never see Debbie again -- unless I totally missed it. And that's possible. It's possible that Debbie was left behind on the alien planet and ended up getting snuffed due to the planet's fatal trajectory with a black hole. But I'm betting that Debbie is still tucked away safely on the Jupiter 2. Which would be totally cool. Because she would be the first notable avian space traveler in known history!
The good news is that we learned of Debbie's survival! The Robinson family (along with Debbie, Don West, and Dr. Smith) found themselves trapped on a distant, toxic planet far, far away from the Resolute and the other colonists. Fortunately, they eventually pull it together and manage to reunite with their friends.
As you can see, Don was very concerned that the Resolute's crew would impound his pet chicken and that he would suffer the consequences. Which is essentially what happened within a few episodes once it's discovered that he's a smuggler. He ends up locked away in his quarters -- though thankfully he's allowed to keep Debbie by his side. Thankfully, because Debbie has devised a plan to help him escape from his electronic ankle guard. Eventually.
We don't get to see much of Debbie for the rest of the season, but we know that she survives the Resolute's destruction. Don rushes back to save his pet chicken and evacuates her to their Jupiter spaceship!
Which is great news -- assuming that there is indeed a "Lost in Space" season three.