Detective Comics, Vol. 1

Batman must find a way of keeping a convict who has served his time alive during a prison break so that he can divulge information about corrupt politicians, despite a black militant con who wants to bargain for freedom and a hired killer out to get the man Batman wants to protect. "Up Against Three Walls!," script by Frank Robbins, art by Don Heck; Continuing from last issue... Commissioner Gordon and his daughter Barbara had traveled to Mexico City so that the Commissioner could teach the police there crime fighting techniques against drug smugglers; Arriving at police headquarters as Batgirl, Barbara learns that the local mob had demanded a ransom of twelve and a half million Pesos for their safe return.