Recently, AMC released a photograph of "The Walking Dead" season 4 episode 4 titled "Indifference" and in the photo we see, Michonne. She is pointing the flashlight into, what looks like, a cupboard, where there are loads of medicines. We wonder, if this is the veterinary college or someplace else.

If you remember, on episode 3 titled "Isolation," vet Hershell Greene advised a supply team to go out to the college. It was close to 50 miles away from the prison. Daryl Dixon, Bob Stookey and Tyresse formed a group but lost their car to the walkers. They were last seen in the woods. It points out that they have the medicine, but it is unclear how they are going to come back to the prison.

In the photo, Michonne is staring at a person (we can only see the shoulder) with an expression of suspicion - the shoulder can be of a walker or a new person. It was revealed that new characters will make way in "The Walking Dead" season 4. But, it is unclear that when these new character will come into the scene and who they are.

While, this group is off to look for medicines in the vet facility, Rick and Carol are together, and they head out on their own for some kind of an adventure.

In the teaser of "The Walking Dead" season 4 episode 4 Rick and Carol are seen running solo as they enter into a house and look for supplies in the cabinets. While they are alone, will Rick ask Carol about her decision to kill David and Karen?

Will he tell others about it? Well, these questions will only be answered in the future episodes of this Zombie saga.

Watch "The Walking Dead" on AMC at 9 p.m. on Sunday nights.