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A successful boxing trainer discovers that her boyfriend, a reigning champion, has been cheating on her with her own sister. She sets out to get revenge by training the one man capable of dethroning him: his arch-nemesis.

The story centers on successful boxing trainer Sienna Lane, who discovers that her boyfriend Jax, the reigning champion, has been cheating on her with her own sister. She sets out to get revenge by training the one man capable of dethroning him: his arch-nemesis Kayden.—Deadline

When successful boxing trainer Sienna Lane discovers that her boyfriend Jax, the reigning champion, has been cheating on her with her own sister, she sets out to get revenge by training the one man capable of dethroning him: his arch-nemesis Kayden.—themoviedb