？！
Did you make it to the train?!
Literal
Train [to-に] be-in-time-past [explanatory-のか]?!
A short exclamatory question. 間に合う is the standard verb for 'to be in time (for)' — it takes the target with に: [target]に間に合う. The のか ending here is the explanatory question form with a punch of surprise or urgency, and the double punctuation ？！ (or ?!) reinforces that the question is delivered with emphatic tone. The omitted subject is the listener, recoverable from context.