S4, Ep1 - The Terrible Trio
Three rich youths who commit armed robbery for fun are pursued by Batman as their irresponsible hobby escal ates into potentially worse deeds.
S4, Ep2 - Showdown
While the Dynamic Duo race to stop Ra's Al Ghul from performing a kidnapping, the wild west story of how one of his sons was opposed by the disfigured bounty hunter, Jonah Hex, is told.
S4, Ep3 - Catwalk
Catwoman is trying to go straight, but is recruited by The Ventriloquist as a jewel thief.
S4, Ep4 - A Bullet for Bullock
Det. Bullock reluctantly asks for Batman's assistance when he is convinced someone is trying to kill him.
S4, Ep5 - The Lion and the Unicorn
Red Claw kidnaps an old colleague of Alfred's from the British Secret Service, to gain access to a hidden missile silo.
The fourth and final volume of Batman: The Animated Series is a little uneven but still encompasses some great episodes. Start with "Over the Edge," a nightmarish scenario in which Commissioner Gordon dedicates himself to hunting down Batman following the death of his daughter, Batgirl. "Critters" is a tribute to Japanese monster movies, "Mad Love" recounts the origin of Harley Quinn, and "Legends of the Dark Knight" animates both a '50s-styled Batman adventure as well as a scene from Frank Miller's Return of the Dark Knight. This run of 24 episodes has a lot of Batgirl, too little Nightwing, and a lot of the new Robin, Tim Drake, whose origin is explained in "Sins of the Father." Drake gets a mostly solo adventure, Batgirl teams with Supergirl, and there's still a sense of fun, with goofy humor that includes an appearance by the Three Stooges as the Joker's henchmen. Guest voices include Sela Ward as Calendar Girl and Tippi Hedren, and Mark Hamill continues the excellent work as the Joker that created some early rumors about his taking the live-action role in the sequel to Batman Begins. By this time, Batman had become part of the Batman/Superman Hour, so viewers can choose the opening sequence for either that or the original animated series. That, as well as the unbalanced number of episodes in the seasons (e.g., the first season of the animated series was 60 episodes), is why Batman: The Animated Series was released in volumes rather than as single-season sets

剧情叙述公元994年的苏格兰城堡，有一群帮助人类捍卫城堡的夜行神龙，他们日间为石像、夜间为神龙，由Goliath所领导。但是却因为人类的阴谋，神龙们几乎被摧毁殆尽。仅存的神龙虽然躲过一劫，但却沉睡了千年之久。当他们醒来时发现世界已经变了，他们如今身处在纽约曼哈顿的现代都会，是由百万富翁 Xanatos将整个城堡移建过来，他希望这群神龙能为他所用。但是历经人类背叛险遭灭族的夜行神龙，如今还会再度相信人类吗？