My car won't start including emergency flashing lights.

ok,you asked,dead battery,bad connections on the batt cables,fusible links burnt,burnt fuse or relay box,bad cabin power wire,bad ground(s),bad relays,shorted alternator,or something specific to that vehicle that i am not aware of.if you can't jump start it and get something ie.flashers or headlights,it may be time for the wrecker.