It's holiday time at Hollywood Arts and the kids have to find the perfect Secret Santa gifts for each other because whoever gives the worst gift has to go door-to-door yodeling with Sikowitz.
Sikowitz recruits the gang to form a children's band for a friend's party. When a leaked video of the group's performance becomes popular, André struggles to be taken seriously as a musician.
Andre spends time with Jade working on a song and develops a crush on her. Tori tries to help him get over his crush, but nothing seems to work, and Andre has trouble keeping his feelings a secret.
After the mysterious death of an astronaut in a highly sensitive Mars simulation, the NCIS team must send Ernie into the habitat to investigate alone.
When Ben leaps aboard a 1970's passenger jet as a flight attendant, he must outwit its hijackers before it mysteriously crashes into the Atlantic. Worse? He has to do it all without Ziggy's help.