Quite good. Better than season 2.
LOTS of action.
But I still like season 1 and the original film (2011) best.

The 3rd and final season of Hanna finds Hanna secretly working from within the sinister Utrax organization to destroy it and secure her freedom.
She forms an alliance with her former nemesis, ex-CIA agent Marissa Wiegler, to bring down the program. Their mission involves:
Personal Stakes: Hanna’s attempts to lead a normal life are complicated by a romantic subplot with an activist named Abbas, whose safety becomes a primary concern as the operation reaches its climax.
Internal Sabotage: Coercing high-ranking agent John Carmichael to aid their cause.
New Threats: Facing Gordon Evans (played by Ray Liotta), a powerful former military man who oversees the Utrax “Pioneer” agenda.
80% critic rating on Rotten Tomatoes sounds about right to me. Worth watching if you like (silly) thrillers.
Click PLAY or watch it on YouTube.