Days of Future Past: Part 2 - S1-E12
Continuity mistake: The final scene from the previous episode is reprised in the beginning of this episode, yet some of the dialogue is different or omitted altogether. In Part 1, when Storm says "We all have dark sides to our souls," Wolverine responds by telling her to speak for herself and states he's more suspicious of Bishop than anybody. Also, when Rogue walks in and asks who Bishop is, before anyone can tell her, Gambit announces his arrival. When Bishop accuses Gambit of being the traitor, Gambit tells him he thinks there's been a mistake. In this episode, Wolverine never states that he is suspicious of Bishop, Professor X tells Rogue who Bishop is before Gambit walks in, and when Bishop accuses Gambit of being the traitor, he fires his gun at him before Gambit can even say anything.