Card Captor Sakura - episode 27

 Not only does this episode have more Ms Mackenzie, it features the same setting. Sakura wakes up unusually early and decides to pay a visit to the shrine from her previous quest and is surprised to find Ms Mackenzie there, tending to some small affairs. Her father is the owner of the shrine estate, and she's there to help, doing work on the grounds and the like. Any contextual clue about Ms Mackenzie's activities and motivations seems to to be planned around the mystic and the spiritual, which keeps Lee suspicious, Sakura doesn't seem to mind much, as she helped them capture the maze card, which proves to be enough for Sakura's rationale that Ms Mackenzie is nothing to fret about. Making small conversation with the teaching adult helps shed some light on her backstory: she had also been Tory's teacher and left at one point to teach abroad and doesn't return until several years later. The only thing that seems out of place is that Tory doesn't seem to recognise her, a tiny detail which Sakura's father also finds odd. The mismatched memories somewhat realign later, when Sakura disappears into a tree and witnesses a dialogue between Ms Mackenzie and Tory, only that it is a conversation that takes place in the past, as indicated by a noticeably Tory addressing the woman as his teacher. Sakura is stuck in a chronological paradox, and it's up to Lee and Kero to bring her back.

Check out the impromptu partnership between Lee and Kero. They would usually get in each other's face and downplay each other's skills. But when Sakura's safety is at stake, they prove capable of setting their differences aside and join forces to see to it that our protagonists is well. Having the Time card helped of course, not to mention Kero's expertise in Clow matters when he raises the important observation that bringing the Return Card requires a great deal of spiritual energy. Lee bites the bullet, proving that he's not the selfish kid that Kerooften makes him out to be.