
Warning: There are spoilers ahead for Sunday's "The Walking Dead."
Sunday's "The Walking Dead" ended with Gabriel in a poor state, but the moment which caused the most chatter was when Rick spotted a mysterious aircraft flying overhead.
Is the military around searching for survivors after so long or is Rick a bit far too gone? We've rounded up what may be going on with that unexpected helicopter in Sunday's episode.
1. Rick is hallucinating.

It wouldn't be the first time Rick has seen things. For a while, he was haunted by his dead wife Lori and was taking phone calls from other friends who died on their journey.
Why it's not likely: Rick seems like he's in a much better mental state right now than at the prison. He's leading the fight against the Saviors and is trying to decide the best way to move forward without taking out innocent lives. That's what ignited his entire fight with Daryl in Sunday's episode.
Remember, this isn't the first time Rick has seen a helicopter. He also saw one in season one and that one wound up to be real. That's the same one which led walkers to eventually take over Hershel's farm in season two. Rick just seems to have luck at spotting aircrafts.
2. It belongs to the Saviors.

Negan has been able to provide his people with food, hot water, and electricity. Is there anything Negan doesn't have at his fingertips?
Why fans think it's possible: If you were paying close attention to the episode's start, Simon made a reference to a "flyer" in Sunday's episode. He said if they can't get the Hilltop under control then the answer may be to "take a flyer on the place and kill everyone there."
Some think he was referring to a chopper.
Why we're not convinced: Why haven't we seen this helicopter until now and who's driving it? If anyone was in this thing, we would think it's Negan. The Savior leader also made it clear that people are a resource, and that he's not interest in killing unnecessary lives. He went off on Simon when he suggested murdering the Hilltop community.
3. It has something to do with the show's spin-off, "Fear the Walking Dead."

We already know there's a crossover episode coming at some point. Maybe the shows are working towards meeting up in a larger way down the road.
Why it's likely: We've seen government groups before on "Fear the Walking Dead" and we know the main character Madison is related to someone on "The Walking Dead,"possibly Daryl. Will she eventually go in search of her relative?
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