I really enjoyed this episode like everyone else

actually it has become one of my favorite episodes of this season.
when Cadmus comes back in the game everything becomes more tense and I really crave for the tension and action when Kara goes against Cadmus! I guess everyone here has already mentioned the good points so I jump to my own thoughts:
first of all I can't get over thinking what was in that box Lillian snatched from Lex's vault?!!! can it be an ultimate weapon to kill Kryptonians, like a new Kryptonite, one which wouldn't explode? or Aliens in general? or does it have anything to do with Jeremiah coming back in episode 15?! really my mind is swirling with possibilities!
Also the objects in that vault were breath taking! I literally felt a chill in my bones seeing all the deathly things that could harm our girl in one room! Melissa Benoist's cries of pain this episode broke my heart

she's such a fantastic actress. one the other hand I'm not sure if the contents of the vault survived the explosion... It would be a shame that all of them just disappear from the show for ever. specially Lex's war suit! I was looking forward to see it later in action

why would they show us all that and take it away so quickly?
on the bright side I'm pretty sure the Black Mercy didn't make it
another part that send a chill down my spine was kid Lena!!!!!! with her "I really like this game!" and I was like oh no! she's EVIL! Run Kara Run! ( or rather Fly Kara!Fly!

) )
I'm totally confused whether she's good or bad. guess that's the whole point the writers mean. they want us to be doubtful. I hope they get along in the end and eat doughnuts like nothing ever happened
P.s: I almost forgot. I remember someone mentioned why Jonn got there so late. I think it's because Kara is much faster.
The Pain and Sacrifice are what makes us who we are