Therefore, perhaps for the sake of reality, Aristophanes devises a second plot for Lysistrata and the women—the seizure of the treasury. Lysistrata reasons that if the Athenians have no money they will not be able to continue the war. Lampito, the Spartan delegate, tells Lysistrata that the Athenians will not give up as long as there is "Abundant silvers stored up with the Goddess." The dual plot lines work well together—the young, attractive women stage the sex-strike and the older women take the treasury, but the divide between old and young women is quickly blurred. The distinct female characters introduced in the first moments of the play disappear into the crowd of women at the Akropolis. Douglas MacDowell suggests that Aristophanes may have not have enough actors available to keep the groups of old and young women distinct. And, of course, the distinctions are unimportant thematically. As MacDowell states, the point is that all Grecian women are opposing the men as a unified force. The plots, like the women, also become confused. Rather than the women going home to entice and seduce their husbands into maddening desire, the women stay and are held hostage at the Akropolis. In only one scene, between Myrrhine and her husband, does the audience witness any seduction between husband and wife; the grand sex-strike theme is never fully played out.

The Akropolis, by the time of Aristophanes, was not Athens's center of business or democracy. The Akropolis belonged to Athena and was primarily a religious place. The Akropolis was also Athens's treasury, placed under the protection of Athena. By taking the treasury, the women prevent the men from accessing public funds which are essential to the war effort—in all, a much more direct way to end the fighting. Although primarily religious, the Akropolis also stood for the democracy and government of Athens. The Chorus of Old Men, progressing up the hill, sings about Kleomenes who took the Akropolis. Kleomenes seized the Akropolis at least a century before Aristophanes wrote Lysistrata, but this event was obviously a memorable and great event in the collective minds of the Athenian men. Kleomenes, like the women, threatened the government and democracy of Athens. As the men walk up the hill, the First Semichorus of Men remarks that a Matriarchy has taken hold.

The issue of the control of money is another source of tension between the sexes. Lysistrata clearly tells the Commissioner that the women will take care of the money just as they do the money at home. Aristophanes here implies that women have a sense of reason greater than their male counterparts.