I thought about that when I saw the first episode. They're gonna have a Walt situation on their hands pretty soon.
And by tone of the show, I was thinking more along the lines of like when they found the hatch on Lost. Soon after that it stopped being "we tryin' to survive on dis desert island 'n shit" and became "Dharma mysteries and time travel!"
I'm wondering if we'll eventually look back on the first 5 episodes and think "psh, you guys didn't know anything." And if the overall plot of the show will become more about struggling to find a cure rather than struggling to not get eaten. It's like everybody just leveled up, same as on Lost post-hatch. Food/shelter/not getting nommed aren't their main concerns anymore, there will be a different set of obstacles from now on.