The CW have released the full description for the midseason finale of Arrow , and those of you complaining that this season has been a little slow will be glad to know that things between The Arrow and Ra's al Ghul will finally reach a breaking point! Hit the jump for details...

RA’S AL GHUL GIVES OLIVER AN ULTIMATUM; DINAH LANCE PAYS LAUREL A VISIT — Nyssa (guest star Katrina Law) returns to Starling City and tells Oliver (Stephen Amell) that her father, Ra’s al Ghul (guest star Matt Nable) has given Oliver 48 hours to find Sara’s killer or the League of Assassins will start killing the citizens of Starling City. Laurel (Katie Cassidy) is stunned when her father (Paul Blackthorne) delivers a very special Christmas gift – her mother, Dinah (guest star Alex Kingston). Meanwhile, Ray (Brandon Routh) tries to make amends with Felicity (Emily Bett Rickards) and Oliver sets a meeting with Ra’s al Ghul. Thor Freudenthal directed the episode written by Jake Coburn & Keto Shimizu (#309).

Interesting...after a fairly slow build up, it does sound like the mystery surrounding Sara's killer

will finally be revealed,

while Oliver and Ra's coming face to face should help to make the second half of the season all the more exciting! What do you guys think?