The following is a list of episodes of Welcome to Bikini Bottom!. The show officially ended on March 25, 2016 with 28 episodes. The show was put on a long hiatus for about a year and eventually aired the unaired episodes of season two and then the last episode was aired. The last episode signifies the end of the brothers.
A spinoff of the series will be released in between April and July 2016, and will be entitled Welcome Back to Bikini Bottom!. In the spin-off, Seth and Caleb find a way out of the main drain and on their return to Bikini Bottom, they find out they now can breathe underwater after they run out of oxygen.
Season 1[]
Welcome to BIkini Bottom! premiered on December 27, 2014 with the episode, SpongeBob and Patrick. It introduced two main characters, Seth and Caleb. The season will end on about May 22, 2015 with the episode, Mad Worm Disease.
| Title Card | # | Episodes | Airdate
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"SpongeBob and Patrick (Welcome to Bikini Bottom! episode)" | December 27, 2014 | |
| Seth and Caleb meet SpongeBob and Patrick.
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"Finding a Job" | December 28, 2014 | |
| Seth has to find a job, eventually he is hired at the Krusty Krab.
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"Waiter at the Krusty Krab" | December 29, 2014 | |
| Seth's first day at work.
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"Boating School (Welcome to Bikini Bottom! episode)" | January 2, 2015 | |
| Seth attends Mrs. Puff's Boating School for the first time.
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"Building a Home" | January 9, 2015 | |
| Seth and Caleb finally build a home right across the street from SpongeBob & Patrick.
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"Seth and Caleb's House Party" | January 28, 2015 | |
| Seth and Caleb throw a house party to celebrate the building of their new home.
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"Halloween" | January 29, 2015 | |
| It is Seth and Caleb's first Halloween in Bikini Bottom and a Halloween party is being held at the Krusty Krab.
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"Plankton!" | January 30, 2015 | |
| Plankton tries to take advantage of Seth's inexperience by trying to get a Krabby Patty from him.
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"Sleepover (Welcome to Bikini Bottom! episode)" | February 6, 2015 | |
| SpongeBob, Patrick, Seth, and Caleb have a sleepover at SpongeBob's house.
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"Valentine's Day" | February 15, 2015 | |
| It is Valentine's Day in Bikini Bottom and Seth and his friends want to spread Valentine's Day cheer to Bikini Bottom.
Note: This episode was originally to be released on February 14, 2015 but was delayed. | |||
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"Club SpongeBob" | February 20, 2015 | |
| Seth and Caleb are initiated into Club SpongeBob.
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"The Penny-less" | February 28, 2015 | |
| Mr. Krabs really wants a penny that Seth has in his pocket that he found on the floor.
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"Mrs. Puff's Birthday" | March 18, 2015 | |
| It is Mrs. Puff's birthday and SpongeBob wants to do something very special for her.
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"Patrick's Poem" | March 19, 2015 | |
| Patrick finds one of Squidward's poems and passes it as his.
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| File:Christmas.jpg | "Christmas" | March 20, 2015 | |
| SpongeBob, Patrick, Seth, and Caleb wait for Santa to come to their home on Christmas Eve. | |||
| File:Conversational Talking.jpg | "Conversational Talking" | March 27, 2015 | |
| While Gary gets a checkup late at night, Seth and Caleb talk about what would happen if they would have never came to Bikini Bottom. | |||
| File:Goo Lagoon.jpg | "Goo Lagoon (Welcome to Bikini Bottom! episode)" | April 3, 2015 | |
| SpongeBob and Patrick take Seth and Caleb to Goo Lagoon. | |||
| File:A Good Noodle.jpg | "A Good Noodle" | April 10, 2015 | |
| SpongeBob becomes jealous of Seth when he beats him at being a Good Noodle in Boating School. | |||
| File:Jailtime.jpg | "Jailtime" | April 17, 2015 | |
| Officers accidentally arrests Patrick after thinking he is a criminal. | |||
| File:Mermaid Man and Barnacle Boy.jpg | "Singers!" | April 17, 2015 | |
| Seth and Caleb go to see a new movie of Mermaid Man and Barnacle Boy and get to see the now 80-year-old superheros. | |||
| File:Singers!.jpg | "Mermaid Man and Barnacle Boy" | April 24, 2015 | |
| SpongeBob and Seth become singers, however, Patrick ruins their fame by wreaking havoc at their concert. | |||
| File:The Krabby Supreme.jpg | "The Krabby Supreme" | April 24, 2015 | |
| SpongeBob has trouble making a new menu item called the Krabby Supreme and accidentally creates a tornado out of undercooked Krabby Patty meat. | |||
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"Thanksgiving (Welcome to Bikini Bottom! episode)" | May 1, 2015 | |
| SpongeBob, Patrick, Seth, and Caleb celebrate Valentine's Day. | |||
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"Glove World" | May 8, 2015 | |
| SpongeBob and Patrick take Seth and Caleb to Glove World. | |||
| File:Pin the Tail on Patrick.jpg | "Pin the Tail on Patrick" | May 15, 2015 | |
| When Caleb plays Pin the Tail on the Sea Horse, the game gets out of hand. Patrick gets right in front of the seahorse poster and somehow causes Caleb to chase him thinking he's the seahorse. | |||
| File:Mad Worm Disease.jpg | "Mad Worm Disease" | May 22, 2015 | |
| Bikini Bottom is the target of an epidemic called Mad Worm Disease, however it is proven to be a hoax by Dr. Gil Gilliam. | |||
- The Welcome to Bikini Bottom! Movie - This the official name. It will begin release on Friday, June 5, 2015. A poll has been created to see which plot is most liked. All of the writers will be writing for the series.
Season 2[]
Season 2 is set to premiere some time in late 2015. It will start with the episode, Patrick and the Sea Monster.
During Season 2, Welcome to Bikini Bottom! started producing two 11-minute episodes instead of 1 22- minute episode.
If there are two segments in an episode, the first segment will be released on Tuesday, and the second on Friday. But, they go together, so their official release date would be that Friday. If there is one half-hour segment, it will be released on a Friday.
There is actually now a slight chance that the rating will be changed from G to PG-13.
| Title Card | # | Episodes | Airdate
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| File:Patrick an the Sea Monster.jpg | "Patrick and the Sea Monster" | March 25, 2016 | |||||||||||
| Patrick finds a sea monster who ends up destroying Bikini Bottom. | |||||||||||||
| File:The Boat Driving Test.jpg | "The Boat Driving Test" | March 25, 2016 | |||||||||||
| Seth takes a test at boat driving for Mrs. Puff. | |||||||||||||
| File:N/A | "Golden Star Wars" | March 25, 2016 | |||||||||||
| SpongeBob and Seth are neck and neck for the largest amount of good noodle stars in the class. | |||||||||||||
| File:Summer in Bikini Bottom.jpg | "Summer in Bikini Bottom" | March 25, 2016 | |||||||||||
| It is summer in Bikini Bottom.{{Template:EpList | Card = Welcome to Rock Bottom!.jpg | Prod = 3b | Name = Welcome to Rock Bottom! | Date = N/A | Desc = The bus accidentally drops, SpongeBob, Patrick, Seth, and Caleb in Rock Bottom in a mix up. | Card = The End of Seth and Caleb.jpg | Prod = 4 | Name = The End of Seth and Caleb | Date = March 25, 2016 | Desc = Seth and Caleb go down the main drain and are never seen again. Or are they? | |||
