Johan Franzen had a natural hat trick in a 3:26 span of the first period, scored a fourth goal in the third, and set a Red Wings playoff record with six points as Detroit stayed alive with a 7-1 rout of the San Jose Sharks on Thursday night in Game 4 of the Western Conference semifinals. San Jose will host Game 5 on Saturday night with another chance to advance to hockey's final four for the second time in franchise history and first since 2004.