When The Gaang visit Kyoshi Island because Aang wanted to ride the large fish. The three (Aang, Katara and Sokka) are captured by Suki and the Kyoshi Warriors. After they find out that Aang is the Avatar, they welcome him.
Later, Sokka goes to Suki and the other Kyoshi Warriors and asks Suki to train him in the ways of the warrior. Suki accepts him as her student, and makes him wear the traditional Kyoshi Warrior outfit. After training, Kyoshi Island is attacked by Prince Zuko and his soldiers. After a bit of fighting, Sokka and Suki share an intimate moment, and then continue fighting. Sokka then leaves, and Suki isn't seen for a while.
In the second season, Suki is seen without her make-up, she and the other Kyoshi Warriors assisting the refuges. She then assists the Gaang in crossing the Serpant's Pass, and she and Sokka kiss.
Later, she and the Kyoshi Warriors find Appa and clean and feed him. They are then attacked by Ozai's Angels, who do manage to out match them.
Suki's fate is revealed in "The Day of Black Sun: Part 2", where Princess Azula tells Sokka that she enjoyed hearing Suki screaming his name.
When Zuko and Sokka recently invaded the Boiling Rock prison, they found Suki there. When Sokka went to visit her in her cell, she mistakenly punched him in the gut hen he tried to kiss her, but then when she realizes who he is, they hug. She, Sokka, Chit Sang and Zuko begin planning an escape plan. They are about to escape in a cooler that stops heat, but Sokka hears the possibility that his father is arriving at the prison, and Sokka, Suki and Zuko stay.
When they finally see Hakoda, they all begin to devise a new plan. The plan is that they take the gondola that the guards use to bring prisoners in to escape, and use a hostage to make sure they don't cut the line. To do this they had to start a distraction, which a recaptured Chit Sang manages to do. But, the gang don't know how to capture their hostage (the Warden), but as Zuko and Sokka fight about this, Suki puts her own plan into action. She jumps on the heads of the rioting prisoners, scales a wall back flips onto a floor above using her feet, disables several guards, scales another wall, disables several other guards, and captures the Warden, all without tiring (the males slowly catch up, tired). They begin to escape in the gondola, but are chased by Azula and Ty lee, and Suki mentions that she's been waiting for this re-match. When the two pursuers catch up, Suki battles Ty Lee, and after an evenly matched fight, the two villains bail as the prison guards begin to cut the gondola line. Luckily, the guards are defeated by Mai, and Suki escapes with the others.
As of Imbalance Part Two, Suki has rejoined Aang, Katara, Sokka and Toph in Cranefish Town. She went in disguise and assisted them on a mission to spy on a secret rally being held in the old mines and hosted by Liling. The rally involved benders claiming they were superior to non-benders and wanted to take back what they felt was rightfully theirs and start a war between them. Things got out of hand and a fight ensued. Suki was quick to action and ended up chi-blocking Liling and her corrupt daughter Yaling putting the fight to a stop. Having captured Liling the gang is now debating on what to do with her. Toph suggested Aang make an example of her and take away her bending.
In Imbalance Part Three, The next morning, Satoru runs towards the Gaang shouting that the business council was under attack. Aang and Katara put out the fires and Toph goes to save her dad. Meanwhile, Yaling and her army of bender supremacists confront Suki and Sokka and several other non-bender guards. Knowing Suki is a threat, Yaling commands her followers to target her first, since she is a chi-blocker. A fight ensues but eventually Yaling manages to get past them and rescue her mom who was being held captive in the factory. After this, Suki decides to teach Lao’s security guards how to chi-block, so they can better defend themselves against the benders. She doesn't have time to fully train them, but she is confident they can get the basics down. Later that evening, Suki and Sokka spot Ru, a non bender whose mother is Liling and sister is Yaling. They get her to open up to them and she reveals her mothers’ plan of attack against Earthen Fire Industries. She urges them to leave Cranefish Town. Suki and Sokka refuse and say the will be ready for it. Ru then asks Suki to teach her how to chi-block. The next day, the Gaang was prepared for battle. In a surprise attack held in a metal maze created by Toph, Suki is revealed with her newly trained chi-blocking army and this time they are successful in taking down the bender supremacists. After the battle, Aang asks Suki and the rest of the Kyoshi Warriors to stay in Cranefish town to keep it safe and to continue training the non-bender police force. Suki happily agrees.
Hand-to-Hand Combat: Suki is proficient in hand to hand combat. She is the leader and trainer of an elite fighting group called the Kyoshi Warriors. She is able to hold her own against other high class fighters such as Ty Lee. She has amazing acrobatics and parkour skills. She is fast enough to react to benders as quick as Azula (being able to block and dodge her fire blasts at point blank range). Along with the other Kyoshi Warriors, she was also quick enough to ambush Aang, Katara and Sokka upon their arrival to Kyoshi Island.
Weapons: Suki is skilled in the use of fighting with Kyoshi warrior fans as well as the sword and shield.
Chi-Blocking: Suki learned Chi blocking from Ty Lee and incorporates it into her fighting style regularly. She is quick enough to take down powerful benders with it.
Other Skills: Suki is an intelligent and tactical fighter. She is able to learn from and adopt to any difficult situation. For example, while imprisoned she trained herself to be able to defend against Ty Lee's Chi blocking.