Left alone with a governess one snowy afternoon (Alice's sister does not appear in this version), Alice is supremely bored. She idly starts to wonder what life is like on the other side of the drawing room mirror, when she suddenly feels a surge of confidence and climbs upon the mantelpiece to look. She discovers that she can pass through the looking glass and finds herself in a strange room where many things seem to be the exact reverse of what is in the drawing room. Strangely, through all of this, the governess does not seem to notice what has happened.
Alice looks out the window and suddenly sees a White Rabbit. She follows it to a rabbit hole and falls in. Seeing nobody else there, she comes upon a table with a key to a locked door, and a bottle that bears the sign "Drink Me". In a situation exactly reversed from the book, she grows to enormous size after drinking the bottle's contents. Unable to pass into the room beyond the locked door, she begins to cry. A cake with a sign saying "Eat Me" appears. She eats the cake, shrinks to a tiny size, and is immediately swept along into a flood caused by her own tears. Many more of her adventures follow, combining sections of Through the Looking Glass with the original Alice. At the end, Alice is awakened from her dream, not by the "pack of playing cards", but by a riotous celebration that goes completely haywire after she is crowned Queen.