Daily Chess Improvement: Real Game Chess Tactic!

This was an actual game that was played a few hours ago.

Black to move. What is the best continuation / game plan for Black?

Morris-Suzuki, Sophie vs Thalia Cervantes
2018 US Girls Chess Championship

1...Bg4!!, 2. fxg4 Qxe4, 3. Bf4 Rxf4!, 4. exf4 Bxd4+ Black’s winning White Rook. White’s pawn structure collapses!