Madi (Lola Flanery) has always been a bit of a rebel ever since we met her in The 100's Season 5 premiere. Now, she's redefining the word, which is seriously saying something when you realize who her mother and grandmother are.

In an exclusive sneak peek at this week's episode, Abby (Paige Turco) seems to be doing better after her overdose and rapid detox and is back at work healing some of the prisoners of McCreary's (William Miller) gang of miscreants. The rest of the prisoners are busy fighting off Octavia's (Marie Avgeropoulos) incursion, and if that radio signal is anything to go by, the battle sounds bloody. Uncomfortable with the idea of sitting around and letting her people (and they are her people, especially now that she's got The Flame in her) get slaughtered, Madi decides she's had enough of sitting around and bails on Clarke (Eliza Taylor) and Abby to go fight alongside them. Kids! One minute they're coloring on the walls, the next their marching off to command an army of post-apocalyptic savages.

Clarke might be willing to do anything to save Madi's life — literally anything — but we're officially worried about how Octavia will react to Madi's sudden appearance on the battlefield. Blodreina has proven to be a merciless leader, and Madi is officially competition to her reign. Will the Grounders follow their queen or their Heda?

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The 100 airs Tuesdays at 8/7c on The CW.

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Lola Flannery, <em>The 100</em>Lola Flannery, The 100