VIDEO: First Look at this Week's New ONCE UPON A TIME IN WONDERLAND

TV Guide has debuted a first look at this week's all-new episode of ABC's Once Upon a Time IN WONDERLAND, featuring the Knave and Alice heading into Underland. Check out the clip below!

In the episode, titled "Forget Me Not," viewers are introduced to Will Scarlet in a flashback, who turns out to be the nifty Knave of Hearts. Will has joined Robin Hood's Merry Men and convinces them to steAl Gold from Maleficent's Castle before also pilfering an enchanted looking glass for himself that comes with a hefty consequence. Meanwhile in Wonderland, Cyrus successfully tricks Jafar and the Red Queen into sending a Bandersnatch after Alice who in turn exposes something the White Rabbit has been secretly hiding, on "Once Upon a Time in Wonderland," THURSDAY, OCTOBER 24 (8:00-9:00 p.m., ET) on the ABC Television Network.