Warning: There are spoilers ahead for "The Walking Dead."
Sunday's "The Walking Dead" introduced us to a lot of new faces living in the zombie apocalypse.
If you thought episode two was a little slow-moving after the season seven premiere, you may have missed a few callbacks to previous seasons and hints at future storylines.
Keep reading to see 10 things you probably missed on Sunday's episode.
Morgan starts carving arrows into trees and mailbox posts. This isn't the first time we've seen him turn to symbols to find his way.
In season five, Morgan had followed markings left on trees by the cannibals in Terminus.
He finally came upon a map of Washington, DC, with Rick's name on it that led him to Alexandria.
Horses don't seem to do so well in the apocalypse. Sunday night, we saw one of the Kingdom's horses get torn apart by walkers.
It felt very reminiscent of when Rick lost his horse to a herd in Atlanta in the show's pilot episode.
That rabbit foot hanging near Carol's bed was probably put there by Morgan.
Since his return in season five, Morgan has always appeared to have a rabbit's foot on him for luck in the zombie apocalypse.
In season five, episode eight — while Rick and his crew were inside the church — he left a blue rabbit's foot on the altar along with a bullet and a piece of food.
In the season five finale, Morgan came across another rabbit's foot and took this one with him.
Morgan woke up in a car that had this rabbit's foot dangling from the rearview mirror. After disarming a few of the mysterious "W" men, he took this one for himself.
We learned in season six that Morgan started carrying rabbit's feet because of his teacher Eastman (John Carroll Lynch). Eastman recalled how his daughter had given him a rabbit's foot once that she won at a carnival and said that it would bring him luck. It helped him find his path to Aikido, a defensive Japanese fighting style he taught Morgan.
It looks like the rabbit foot hanging near Carol's bed is the same one from the end of season five that Morgan's been carrying around (unless the Kingdom is also fond of collecting rabbit's feet).
The book that Morgan gives Benjamin is titled "The Art of Peace."
It was given to him by Eastman in season six, episode four where we learn more about Morgan's background.
The book has an inscription which Benjamin finds that reads, "Aikido means not to kill [...] we try to completely avoid killing, even the most evil person."
That phrase may become important down the line as Rick's group deals with the fallout from Negan in the season 7 premiere.
With Glenn and Abraham gone from the main cast, they've been scrubbed from the show's main credits. But there are a few new names in their place.
Josh McDermitt, who plays Eugene, finally has his own spot in the credits. His name is shown next to a machine, which may be a callback to when he makes his first attempt at a zombie kill with Abraham.
Christian Serratos, meanwhile, plays Rosita. She was also part of Eugene and Abraham's group originally.
Alanna Masterson plays Tara. She still isn't aware that her girlfriend Denise was killed last season by Dwight.
She may also want to leave Alexandria once she finds out about Negan and the Saviors.
Some were puzzled why her name in the credits was paired with a boat. It may hint towards another new location we may soon see.
In the comics and the Telltale video game series, fans come across another group of survivors from the Oceanside community. They're led by a man named Pete who Michonne comes upon in her travels.
King Ezekiel tells Carol to earn her keep in the Kingdom: If she is to "Drink from the well" she must also "replenish the well" — a nod to the episode's title, "The Well."
King Ezekiel's second in command, Richard, is a character straight out of the comics.
Plan to see him sticking around for a bit.
Sunday night's episode introduced more characters from the comics than just Ezekiel and his pet Shiva. Richard and also Benjamin, the young teen who Morgan starts to train, are two characters from the comic series.
The Kingdom crew fed walkers to pigs, most likely in the hopes that Negan and his men would eat tainted meat.
Many fans quickly recalled a similar scenario back in season five when the cannibals ate "tainted meat."
The Terminus group chopped off and cooked Bob's leg only to later find out that Bob had been bitten by a walker. It's not clear whether or not the cooked meat hurt them in the end. It was revealed in the season one finale that technically everyone infected with the virus could turn into a walker.
Would the Saviors be silly enough to fall for eating some rotted walker meat? And if that goes according to plan for the Kingdom, it's tough to imagine that they wouldn't see some sort of retribution for that.
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