LEGO has expanded its collectibles reach once again with the debut of BrickHeadz, and fans will be able to get their hands on two exclusives at San Diego Comic-Con.

(Photo: LEGO)

If you happen to be at the big show you can drop by LEGO's booth to pick up an exclusive BrickHeadz set starring Supergirl and Martian Manhunter. As you can see in the gallery, both characters draw inspiration from the Supergirl series on The CW, and both will only be available at Comic-Con.

The box comes with 234 pieces and will cost you $40.00.

Now, while you will eventually buy it from the LEGO booth, you will need to first visit the Pavillion Terrace to enter a random drawing to qualify first, which will start around 6 a.m. If your ticket is picked you can then purchase the set from July 21st to July 23rd.

If you can't purchase it at the show there will be a chance to win the set on Twitter by following @LEGO_Group and the hashtag #LEGOSDCC.

You can view the exclusive Supergirl and Martian Manhunter set in the gallery. For more on BrickHeadz and LEGO's upcoming Ninjago Movie, descriptions for both can be found below.

LEGO® BrickHeadz construction characters bring you a brand new way to collect, build and display iconic characters from your favorite movies, TV series, games and comics.

Buildable Supergirl and Martian Manhunter LEGO® BrickHeadz construction characters feature authentic detailing, uniquely decorated BrickHeadz eyes, and a display baseplate. Each LEGO® BrickHeadz construction character comes with its own buildable collector’s baseplate, featuring series number and BrickHeadz icon.

In this big-screen NINJAGO adventure, the battle for NINJAGO City calls to action young Master Builder Lloyd, aka the Green Ninja, along with his friends, who are all secret ninja warriors. Led by Master Wu, as wise-cracking as he is wise, they must defeat evil warlord Garmadon, The Worst Guy Ever, who also happens to be Lloyd's dad. Pitting mech against mech and father against son, the epic showdown will test this fierce but undisciplined team of modern-day ninjas who must learn to check their egos and pull together to unleash their inner power of Spinjitzu.

Jackie Chan (Kung Fu Panda, The Karate Kid) stars as Master Wu; Justin Theroux ( Magamind 2, The Leftovers) is Garmadon; Dave Franco (Neighbors 2: Sorority Rising) plays Lloyd; and Olivia Munn (X-Men: Apocalypse) is Lloyd's mom, Koko. Making up the secret ninja crew, Fred Armisen (The Jim Gaffigan Show, SNL) voices Cole; Abbi Jacobson (Neighbors 2: Sorority Rising) plays Nya; Kumail Nanjiani (Mike and Dave Need Wedding Dates) is Jay; Michael Peña (Ant-Man, The Martian) is Kai; and Zach Woods (Silicon Valley) voices Zane.

The film is slated to open nationwide on September 22, 2017.

MORE TOYS: Batman Justice League Figure Revealed By S.H. Figuarts / Sideshow Unveils Epic Dark Knight Returns As Convention Exclusive / New Hot Toys Statue Provides Best Look At Iron Man's Homecoming Armor