Can anyone help me with what Voyager episode I’m thinking of?

I wanted to rewatch some old voyager episodes and I vaguely remember one that was pretty interesting. All I remember is that Janeway and a few others had been captured and had their memories wiped and then implanted with false ones so that they think they’re part of this alien society. I don’t even remember what season the episode was apart of. If anyone knows I would appreciate it.