Fool for Love / Shadow
In "Fool for Love", after Buffy is almost fatally skewered by a vampire, she wants to learn more about past slayers' final battles. Lucky for her, Spike has firsthand accounts of two such fights... for the right price. While the Slayer takes a lesson from William the Bloody, Riley tracks down the vamp that almost killed his girlfriend. Kristen and Mike discuss all the ways Riley could have been useful this season, and Spike's bravery/recklessness in declaring his love to women.
In "Shadow", while Joyce is hospitalized and diagnosed with a brain tumor, Glory shops at the Magic Box for spell supplies.... Whoops. She casts a spell summoning a cobra-demon to locate the Key. Meanwhile, Riley's pouting because the Slayer's life doesn't revolve around him, and decides allowing Sandy to feed off him is the answer. Kristen and Mike revisit all of Sunnydale's giant demon snakes, and we have a good cry for Joyce.
PLUS! We answer Erika's question: If Buffy Summers didn't come back in season 6, would you rather watch a spin off where Dawn and Spike move to Indiana and Spike becomes her guardian or Dawn and Giles move to England?