《超胆侠》是一部改编自漫威同名漫画的电影，由马克·斯蒂文·约翰逊执导，本·阿弗莱克、珍妮弗·加纳、柯林·法瑞尔、迈克·克拉克·邓肯主演。电影讲述了一个被化学物质致盲的失明律师马特·默多克如何借助自身的超人敏锐感知和刻苦训练，变身为超级英雄“超胆侠”，保卫纽约市不受邪恶势力的侵蚀。

影片以马特的童年经历作为开场，让观众深入了解马特的性格和背景。马特是一名拳击手的儿子，他的父亲曾经为了生计而做别人的打手，但是马特并不知情。一天，马特无意间看到了父亲做打手的情景，对此感到十分失望，于是独自离开家中。在途中，他差点被叉车撞上，化学物质溅到他的眼睛中，使他失去了双目的视力。然而，马特并没有放弃，他利用剩余的四种感官，并通过刻苦训练，最终获得了宛若雷达一般的超人能力。

白天，马特是一名普通的律师，而夜晚降临后，他则化身为“超胆侠”，用他的超能力和刻苦训练，打击犯罪、追讨恶徒。但是，在面对长期与罪恶为伍的城市暗区时，马特也不免会变得怒气冲冲，易受黑暗的吸引，身心都会受到一定的摧残。而他的敌人——金并和靶眼，则是绝对不会轻易向“超胆侠”低头的。

与此同时，马特的女友艾丽卡的父亲，表面上是希腊大使，但实际上也是黑社会中的重要成员。他想退出组织，但被组织头目金并派人杀掉。马特试图救他，但最终失败了，艾丽卡的父亲被杀。

This film is adapted from the Marvel comic of the same name, directed by Mark Steven Johnson, starring: Ben Affleck, Jennifer Garner, Colin Farrell, Mike Clark Duncan

Matt Murdock (played by Ben Affleck)'s father is a boxer. One day, when Matt went to the factory to look for his father, he happened to see him beating someone for his employer. Matt didn't expect his father to be a beater without telling him. He couldn't restrain his anger, turned around and ran away, but a tragedy happened: Matt was hit by a forklift, loaded with chemicals. This is a kind of radioactive waste, which caused Matt to be blind in both eyes. However, since Matt lost his eyesight, he unexpectedly discovered that his senses of hearing, touch, smell, and taste have become as keen as radar. Feel what happened in any corner of the city, but he didn't tell anyone this secret.

Many years later, Matt's father was attacked by gangsters and died on the street. Matt vowed to avenge his father. During the day, he works as an ordinary lawyer in New York, and at night, he puts on a red tights and becomes "Super Daredevil". With a whole body of pride, the villains who could not be punished by law were executed on the spot. Soon, the Kingpin and the mysterious Bullseye make him their sworn enemy. At this time, Matt's girlfriend Erica (Elektra), whose father was an important member of the underworld, was hunted down for leaving the organization. Matt's rescue failed, and Elektra's father was eventually killed. Erica mistakenly thought it was Matt's work, and came to seek revenge on him... In the face of her lover's misunderstanding and evil forces, where will Matt go?