Compared to the previous episodes of Alphas, "Never Let Me Go" had nothing that stuck out to me. Rachel could be an interesting character, but she's just not enough in an episode which had a sub-par plot. It's an open and shut case of an alpha gone bad, and the team has to clean it up.
Like Gary in the previous episode, Rachel makes a connection to the alpha, but unlike Gary, it's hard to see how her powers play into the episode other than making her more susceptible. In the climax of the episode, she is taken out of commission and it is up to her teammates to save her. And the best she gets is Dr. Rosen telling her that he's a father to her. Boy, we didn't know that!
This is the second time there is an alpha who affects people's internal chemistries, and it's not that exciting to be honest. Besides the initial shock of zombie-like people die, the whole bit about falling in love we people and then pushing them away was both tame and boring. At least the first time an alpha did something similar, it sent people into a frenzy.
Score: 8.3/10