After defeating her former "formula-fueled" friend Nicole in "The Formula III", Jacqui (Zoë Hammar) decides to mix up a batch for herself to see if she can increase her own natural strength even more. After Jacqui consumes the elixir, Jessica (Carmen Porta) arrives and suffers a huge beating at the hands of Jacqui's incredible power. But Jessica manages to drink some of the formula herself, and is soon on the attack. Great action, cool feats of strength and more in this one, gang!