A ransom stands for being made to pay to get back what is yours. Tradition reads it as feeling trapped by demands or emotional pressure, never as a forecast of real danger.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.