Season 2 Ep.15
. The Mallrats have only just noticed that Trudy is missing, one day after Ebony persuaded her to leave the Mall without telling anyone else. Jack, Dal and Ellie make up one of several groups to go out looking for her. The three pictures below are how they left the Mall.
And below is how they are when they stop for a chat shortly after leaving the Mall.

    Red top
    Different necklace
    No facial orange