A somewhat humorous episode dealing with Christmas.
We also get a visit again from young Martin Stein and Jax attempts to change Stein's fate, ala Back to the Future.
Stein however burns the letter and affirms to Jax that he wants Jax to have a good life, etc etc, blah blah.
So Jax returns to the Waverider to say good bye and to have a Holiday/Goodbye party.
Snart tries to help Mick and they appear to become friends.
Jax leaves, but CONSTANTINE arrives! Now they have some magic to compete with Darkh but I REALLY WANT JASON BLOOD/ETRIGAN!
Though Jax has not shown any signs of retaining Firestorm powers, the door is left ajar for his return to the show.
Haven't seen the episode but, I feel like Jax should stay even with no powers. Him and Stein rarely used Firestorm anyway.