Shrewd crook Boston Blackie is determined to go straight. At a celebration held on the eve of his marriage to Mary Dawson, Fred the Count plants a stolen jewel and Blackie is arrested and sentenced to twenty years in jail. Fred the Count tries to win Blackie's fiancée, but the honorable Mary rejects him. Blackie's only hope for escape is from the hospital, so he manages to get into a weakened state. He escapes from the hospital, but is trailed by the warden. Blackie refuses to shoot the defenseless man, and the warden recognizes Blackie as an honorable person and allows him to escape. Blackie frames the Count, and leaves for Honolulu with Mary
| Actor | Role |
|---|---|
 Bert LytellBoston Blackie | Boston Blackie |
 Alice LakeMary Dawson | Mary Dawson |
 Henry KolkerFred the Count | Fred the Count |
 Bernard J. DurningSober Dent | Sober Dent |
 Jack DuffyThe Dove | The Dove |
 Gertrude ShortBaby Doll | Baby Doll |
 Joseph KilgourThe Warden | The Warden |
| WWilliam MusgraveLittle Squirrel | Little Squirrel |
| DDon BaileyChief of Detectives | Chief of Detectives |
| WWilton TaylorDetective Mack | Detective Mack |
| AAh ToyChinese Waiter | Chinese Waiter |