'The Last of Us' episode 7 trailer delves into Ellie's past

We're way past the halfway point of The Last of Us, but we've only been given snippets of Ellie's (Bella Ramsey) backstory. Well, if the trailer for episode 7 is anything to go by, we're in for a look into the past.

In the next instalment of HBO's adaptation of the lauded Naughty Dog game, the series takes time to look into...