There are a couple of ways to interpret this cryptic synopsis. According to the rumor mill, Episode 6 will follow Tara and Heath as they carry out the apocalypse's longest supply run -- which began in Season 6 -- and introduce a new batch of characters somewhere near a beach. Oceanside is the immediate thought for comic book fans but that group is a ways off according to the comics.
Then, there is the possibility of Rick discovering the Kingdom. He will head out of Alexandria in the coming moments with an unspoken destination. Perhaps he will land at Ezekiel's Kingdom and the first signs of a plan to take down Negan will surface?