The answer is pretty simple: after doing a pretty stellar job of implementing a genuinely branching plotline and choices that felt like they really mattered, episode 3 of The Walking Dead revealed it all to be a sham as it hammered the reset button by killing off most of the characters who had been introduced in the previous two episodes. Or, indeed, any other Telltale adventure game. You might be wondering why, after the relatively superlative review of episodes 1 & 2 of The Walking Dead on here three years ago, you never saw a followup review of episodes 3 through 5.