By relating the plot of the MV to their actual career as singers, I can see some eerie resemblance. Throughout their career, Infinite has to face a lot of obstacles as depicted by their fighting scenes with the mob gangsters. Initially it was easy for them (I’m talking about their popularity here). As their career progresses, more and more challenges come their way. The more recognized Infinite become, the more vicious their enemies become. However, Infinite has always been resilient and come back to us. Their echoes of ‘Can you save me' are most probably directed towards their fans to support them no matter what happens. In the end, the battle is still ongoing and they rely on us to never stop giving them unwavering support to achieve their ultimate goals whatever they be (here, saving the girl).
*** Just my overactive imagination to interpret the MV figuratively in the wee hours of the morning