Poptropoica islands

Once you are joined there are a few different island you can choose to do- you try and complete all of them. When you finish an island you get money and credits, you use the credits to buy different outfits, tools, mini games and much more which you use in the game. but if you are going to succsed you need to know the islands and a breif sum-up of them all. This is what i got from wiki.
Early Poptropica
Early Poptropica was the first island created for Poptropica. Players encounter the original settlers of Early Poptropica who are in distress. They are 8 bit arcade characters much like pilgrims who are missing items from their village. While finding the various objects, the player encounters, among other characters, a giant and a very large spider. On Main Street, there is an art museum with works by artists such as Leonardo Da Vinci, Vincent Van Gogh, and Georges-Pierre Seurat.
Shark Tooth Island
Shark Tooth Island was the second island released in Poptropica. The scenario revolves around the inhabitants of the island who are being troubled by a fierce shark. The player must help the citizens by exploring within the island's ancient temple ruins and subduing the giant shark, called Booga, with a special concoction. The player then has to rescue a boy and a professor from an island where they were marooned by Booga.
Time Tangled Island
Time Tangled Island is the third island released for Poptropica. The scenario revolves around a malfunctioning time machine made by Professor Peter P. Pendulum that has distorted history. It is the player’s job to go back in time and set things right. During the quest, users encounter major historical figures such as Thomas Edison, Lewis and Clark, Leonardo Da Vinci and more. Once the player has restored the future, they can go forward in time to see what the future holds, and visit themselves 50 years older. This island was created in conjunction with the editors of Fact Monster to maintain historical accuracy Professor Pendulum can also be found on Shark Tooth Island in the Tourist Center.
24 Carrot Island
24 Carrot Island is the fourth island released on Poptropica. The Poptropicans on 24 Carrot Island are in trouble. Someone has stolen all their carrots, citizens are disappearing, and the economy, which appears to be based on carrots, is in ruins. The player has to face an antagonist named Dr. Hare, who has built a giant robot bunny inside what was formerly a carrot cake factory. Dr. Hare is apparently using the carrots to make fuel for a rocket that will send his giant robot into space, from where he can control everyone's mind. The character must free the kidnapped citizens from Dr. Hare's mind control and stop his evil plot.
Super Power Island
Super Power Island is the fifth Island released for Poptropica. A giant radioactive meteor has crashed into Super Power Island's county prison, freeing six criminals and giving them super powers. Now they are wreaking havoc on the island, committing various crimes. The player must defeat five villains using wits alone, and earn the power to fly (only on Super Power Island). The final villain, Betty Jetty, can only be defeated by flying after her. The island was opened on July 26, 2008.
Spy Island
Spy Island is the sixth island released for Poptropica. In this plot, a new threat to the residents of Poptropica has been discovered by Poptropica's top three spies, but the spies have been captured by an evil group called B.A.D.. The residents of Spy Island are losing their hair, apparently due a B.A.D. plot. The player/agent must use his wits and top-secret spy devices to rescue the three spies and defeat the nefarious plan. The island was opened on September 10, 2008.
Nabooti Island
Choose Your Own Adventure: Nabooti Island was the seventh island released on Poptropica. This island was made in conjunction with the publishers of Choose Your Own Adventure books.The Nabooti tribe is looking for five missing jewels from the mysterious Nabooti totem. The player flies to various locales across Africa to find the jewels and return them. The island was opened on December 10, 2008.
Big Nate Island
Big Nate Island is the eighth island released on Poptropica. This island is based on the comic strip Big Nate, written by cartoonist Lincoln Peirce. The player is on a mission to find a long-lost time capsule which, if found, can save the school from demolition. The player will need help from Nate and his friends to complete the quest. Unlike other islands, Big Nate Island is drawn in the style of the comic strip by Peirce. The island was opened on February 12, 2009.
Astro-Knights
Astro-Knights is the ninth island released on Poptropica. The princess of the Kingdom of Arturus has been kidnapped and taken somewhere into space. The player must build and customize a spacecraft and use it to rescue her. The player will visit various planets in his quest and will have to fight various mechanical beasts. The island contains numerous allusions to Arthurian legend, such as the kingdom being named "Arturus", three knights being named Cador, Peleas, Gawain, and the villain's name being Mordred. The island was opened to early access on June 3, 2009, and to the general public on June 10, 2009.
Counterfeit Island
Counterfeit Island is the tenth island released on Poptropica. It is a detective quest involving some of the world's most famous paintings. While they are on display at the Island Museum, the Black Widow is plotting to steal them all. It is up to the player to stop the Black Widow and recover the stolen painting The Scream. The island was opened to early access on December 21, 2009, and to the general public on January 4, 2010.
Haunted House
Haunted House was added to Poptropica for Halloween 2009, as a free game in the Poptropica store. The player enters a ghostly mansion to find the "treasures" sought by the local supernatural entities. Completion of the quest rewards the players with 50 Poptropica credits, as with the 100 credits received for completing the various islands.
Reality TV Island
Reality TV Island is the eleventh island released on Poptropica and is based on the hit reality TV show Survivor. The player has to compete in challenges against seven other (game-operated) characters, to avoid being "voted off" the island. The island was released to Poptropica monthly members on February 24, 2010 and was open to the public on March 24, 2010.
Mythology Island
Mythology Island is the twelfth island released on Poptropica. It feature mythical people such as Zeus and Hercules. The player has to meet mythical gods and creatures. They must find five items for Zeus and the player will be granted immortality. But Zeus cannot be trusted as he plans to rule all of Poptropica. They must use the powers of the god of the underworld and the god of the seas to defeat Zeus. The island was released to Poptropica monthly members on April 1, 2010 and will be open to the public on April 29, 2010