Aliens and Big Changes Comes to the 'Big Bang Theory'

Looks like the popular comedy series got its mojo back and still promises to keep its viewers rolling with laughter in the upcoming episode "Communication Deterioration".

So far in the previous episode, we have been introduced to Josh, played by Matt Bennett, who is apparently the long lost brother of Simon Helber's Howard Wolowitz. They may have not kicked off well at the start but they surely have bonded over that robotic arm Howard made for the kicks. Meanwhile, Kailey Cuoco-Sweeting and Johnny Galecki's Penny and Leonard got themselves into a fight while Sheldon and Amy, portrayed by Jim Parsons and Mayim Bialik, built a blanket fort while contemplating on the next step of their relationship.

However, in the upcoming episode the gang will be facing the possibility of contact with out of this world being, thanks to Raj, who is played by Kunal Nayyar. On the other side of the fence, Penny is facing another career crossroad as she auditions for a film named "Clerk 3" and ultimately leaving her high-paying job at the pharmaceutical company for her passion.

CBS has released an official synopsis for this episode wherein Christian Today quotes, "When Raj is asked to create a message in case a NASA mission discovers alien life, the guys fight over what he should do. Also, Penny is torn between auditioning for a movie or keeping her successful pharmaceutical sales job."

Hollywood Hill notes that the episode will feature a roster of guest stars including Sara Erikson, Kelli Goss, Phoebe Neidhardt, Mark Maitre and Jeff Jingle. The episode was directed by Mark Cendrowski while it was writte by Dave Goetsch, Steve Holland and Jeremy Howe.

Catch 'The Big Bang Theory's' "Communication Deterioration" on April 16.