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At the hospital to check on her injured friends, Buffy (Sarah Michelle Gellar) runs into Whistler (Max Perlich) who informs her that she must use the blessed sword of the knight who imprisoned the demon Acathla. She reluctantly forms an alliance with Spike (James Marsters) -- jealous over Angel's(David Boreanaz) relationship with Drusilla (Juliet Landau) -- to fight Angel. Meanwhile, Angel is torturing Giles (Anthony Stewart Head) to find out how to use Acathla to open the portal to Hell. Angel eventually finds out that it is his blood that is required to open the portal. Elsewhere, Buffy learns from Whistler that is also Angel's blood that will close the portal. Unaware that Willow (Alyson Hannigan) is attempting to cast the spell to restore Angel's soul again -- see "Becoming, Part 1" -- she goes to kill Angel. Needless to say, this leads to a heartwrenching decision for Buffy to make. Subsequently, the season ends with Buffy leaving Sunnydale on a bus to somewhere.