Can overwatered tomatoes plants be rescued??!

[roo-b-loo]

As title really! I think I must have overwatered them as they're starting to wilt and die but some still look quite healthy. Although the healthy ones are now completely dry (I left them a while before watering again) it seems like the water doesn't soak into the soil as quickly as it should (I put my finger right into the pot and they were def dry before I watered) and I'm worried they'll go the same way as the others! Can the healthy(ish) ones be rescued?? ...any advice??