The third season of Toaru Kagaku no Railgun. 

The Daihasei Festival has begun, and that of course means that Tokiwadai Middle School—a prestigious all-girls' middle school—is competing too. Despite the participation of the "Ace of Tokiwadai," Mikoto Misaka, the other students who are participating are still putting their utmost effort into winning, no matter how impossible the feat may seem against her might. 

However, not all is fun and games. Due to the festival, Academy City opens to the outside world, and various factions have begun plotting ways to infiltrate the city. Misaka appears to be on their radar, and as the festival proceeds, people lurking from the shadows begin to emerge... 

Toaru Kagaku no Railgun T brings back the Tokiwadai Ace and her friends as they dive deeper into the dark side of Academy City. From terrorist attacks to ruthless underground projects, anything is possible in this city. 

(Source: MAL Rewrite)

Episode 1 - Electromaster

Episode 2 - When Working Under a Hot Sun, Rehydration is Essential

Episode 3 - Tokiwadai is Targeted

Episode 4 - Urban Legends

Episode 5 - A Certain Pair of New Trainees

Episode 6 - Everyone is Proactive When it Comes to This

Episode 7 - Abilities and Powers

Episode 8 - Level Upper

Episode 9 - Majority Report

Episode 10 - Silent Majority

Episode 11 - Dr. Kiyama

Episode 12 - AIM Burst

Episode 13 - A Bikini Divides the Eyeline Between Top and Bottom, But a One-piece Shows Off the Figure, so They Only Flatter the Slender

Episode 14 - Special Workshop

Episode 15 - Skill Out

Episode 16 - Academy City

Episode 17 - Tsuzuri's Summer Vacation

Episode 18 - Asunaro Park

Episode 19 - Midsummer Festival

Episode 20 - Poltergeist

Episode 21 - Voices

Episode 22 - Level 6

Episode 23 - What Is It You See In Your Eyes Right Now?

Episode 24 - Dear My Friends

J.C.STAFF

Project Railgun

Square Enix

AT-X

Warner Bros. Japan

Movic

KADOKAWA

NBCUniversal Entertainment Japan

A Certain Scientific Railgun T