Dr Denise has arguably dropped the most concrete evidence on future storylines that will take place. She's looking for pop (not soda, okay, America? POP) to surprise Tara with before she heads out on a two-week supply run with Heath. What does that mean for both characters and the show itself? Tara is in dire need of a significant role, and Heath has been criminally underused so far. This could be a turning point for both of them. Will it be purely those two for an entire episode, or will it just be a side-story, or will they be completely omitted. It'll be fascinating to see how The Walking Dead develops over the next few weeks, but it's a crucial time for side-characters who must impress or follow in the footsteps of the actual walking dead.